TERMS AND CONDITIONS

Last updated: 10th Sept 2026

Products from Thonk Ltd are sold on the terms set out below. If you do not understand or do not agree with these terms, please do not purchase or build our products.

These terms are grouped into sections so you can find what you need:

About us and these terms
Orders and our contract with you
Your account and contact details
Prices and payment
Delivery
International orders, customs and import charges
Building, fitting and using our products: your responsibilities
Build and debugging support
Missing, incorrect or faulty items
Returns, refunds and exchanges
How to arrange a return (RMA process)
Our liability to you
Privacy and your data
Intellectual property
Events outside our control
General
Complaints and contacting us

1. About us and these terms

1.1 Who we are. Thonk Ltd is a company registered in England and Wales, company number 08711466. Our VAT number is GB171499286 and our EORI number is GB171499286000. We trade at www.thonk.co.uk.

Our registered office is C/O Ozkan Accountants Ltd, 2nd Floor, Suite 12, Vantage Point, New England Road, Brighton, England, BN1 4GW.

Our operating address is Thonk Ltd, Unit 14, Floor 6, Vantage Point, New England Road, Brighton, BN1 4GW.

1.2 What these terms cover. These terms apply to every order you place with us, whether through our website, by email, or through any other sales channel we operate. By placing an order you confirm that you accept them.

1.3 Your legal rights. Nothing in these terms affects your statutory rights as a consumer. Where any part of these terms conflicts with rights you have under the Consumer Rights Act 2015, the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013, or equivalent consumer protection law in your country of residence, your statutory rights take precedence.

1.4 Business customers. If you are buying in the course of a business, the consumer protections referred to in these terms do not apply to you. Sections 10 and 12 set out how returns and liability work for business purchases.

1.5 Changes to these terms. We may update these terms from time to time. The version published on our website at the moment you place your order is the version that applies to that order.

1.6 Passing products on. If you buy a product as a gift, or sell or pass on a product to someone else – whether unbuilt, part-built or complete – it is your responsibility to make the person receiving it aware of these terms.

1.7 DIY products and assembled products. These terms use two categories. DIY products are kits, PCBs, panels, loose components and parts that you build, solder, fit or calibrate yourself. Assembled products are items we supply ready-built and ready to use. Several sections below apply to only one of these categories, and where that is the case we say which.

2. Orders and our contract with you

2.1 When the contract is formed. Your order is an offer to buy from us. Our order confirmation email is an acknowledgement that we have received your order, not acceptance of it. A contract between us comes into existence when we dispatch the goods.

2.2 Stock and availability. Occasionally an item shown as in stock is unavailable, mispriced or listed in error. Where this happens we will contact you to offer an alternative, a partial dispatch or a refund. We may cancel your order and refund you in full at any point before dispatch.

2.3 Pre-orders and backorders. Where an item is sold as a pre-order or backorder, any date we give is an estimate rather than a commitment. You may cancel a pre-order for a full refund at any time before it is dispatched.

2.4 Resale of loose parts. Our bulk discounts, shipping discounts, sale prices and online promotions are made available to private customers, manufacturers and kitters on the basis that loose parts are not bought for resale as parts. Loose parts bought at these prices must not be resold as parts. We may refuse sales to resellers at our discretion. If you intend to resell, please contact us by email before ordering so we can discuss reseller terms.

2.5 Orders we may decline. We reserve the right to refuse or cancel any order. In particular, we reserve the right to refuse to sell products to companies involved in the defence and security industries.

3. Your account and contact details

3.1 Accurate details are your responsibility. You must give us a real, correct and actively monitored email address and telephone number when you register and on every order. If you give us false or incorrect details you are in breach of these terms.

3.2 How we contact you. All communication from us will be sent to the email address on your Thonk account or the email address attached to your payment. This includes information you need, such as updates to build documentation.

3.3 Checking your email is working. If your email address is wrong, this will be obvious to you because you will not receive: confirmation of registration, confirmation of your order, or confirmation of dispatch. Please check your spam folder and add [email protected] to your safe senders list so that our emails reach you.

3.4 Your phone number. Couriers and customs agents use your phone number to arrange delivery and collect any charges due. If your number is missing or wrong you may miss delivery attempts and your parcel may be returned to us. See sections 5.4 and 6.3 for what happens then.

4. Prices and payment

4.1 Prices. Prices are as shown on our website at the time you order. UK prices include VAT where applicable. For orders shipped outside Great Britain, see section 6 for import taxes and duties, which are not included in the product price unless expressly stated.

4.2 Payment methods. We accept credit and debit cards and PayPal. Payment is taken at the time you place your order.

4.3 We do not store your financial details. We accept card and PayPal payments without capturing or storing card details or any other financial information on our website. Payment information is collected by our payment providers through a secure frame within our site.

5. Delivery

5.1 Tracking your parcel is your responsibility. If you choose or are assigned a tracked shipping method, you are responsible for tracking your parcel’s progress online and acting on any delivery attempt, delivery instruction or customs request.

Please do not rely on your national postal service leaving a card to tell you about a missed delivery. Track your parcel electronically.

5.2 Parcels returned to us because tracking was not followed. If a parcel comes back to us because you did not act on tracking information, you are responsible for the shipping cost of the entire journey and any import duties and clearance costs incurred. If the goods arrive back with us in good condition we can refund the products, but not the original delivery cost.

5.3 Lost or delayed parcels. Before we issue a replacement we may wait:

3 weeks for a UK delivery sent by a method that is not designated “Signed For™”;
8 weeks for a delivery outside the UK sent by Regular Airmail.

These waiting periods reflect the point at which the carrier will treat an item as lost. They do not apply to tracked or courier services.

5.4 PO Boxes, parcel lockers and third-party collection points. Addresses where the parcel is accepted by a third party rather than by you – PO Boxes, parcel stations, Postnummer addresses, shops, hotels and similar – are used entirely at your own risk. Please do not use such an address if it will not accept parcels requiring a signature, or will not accept parcels from couriers such as FedEx or UPS.

If a parcel is rejected by an address of this kind, we cannot intervene and must wait for it to be returned to the UK. You remain liable for the shipping and reshipping costs of the whole journey, and any duty or customs charges, whatever reason is given for the rejection – and even if your original order was sent with free shipping. For deliveries outside Great Britain you are also responsible for import taxes on both the original and any re-sent shipment.

5.5 Temporary addresses. Please contact us before arranging delivery to a place you are only visiting temporarily, such as a holiday or business address. If you arrange this type of delivery:

we are not responsible for the parcel if it arrives after you have left, and we cannot refund or replace it;
we cannot arrange redelivery once you are no longer at the delivery location;
if the parcel is being held locally, it is your responsibility to travel there to collect it;
if the carrier destroys the parcel because nobody collected it, we cannot refund or replace it.

6. International orders, customs and import charges

6.1 Incoterms. Unless we state otherwise, supplies to customers outside Great Britain are made on a DAP/DDU basis. We are responsible for export formalities from Great Britain. You are responsible for import formalities, including any import duties, taxes and clearance costs.

6.2 Prepaid duties. Where tariffs or duties are paid in advance through a DDP service, they cannot be refunded once the parcel has shipped.

6.3 If customs clearance is not completed. Where a shipment is not delivered because you did not complete the customs steps required of you, we may decline to issue a replacement, and the cost of the whole shipping journey plus all accumulated customs and duty costs will be deducted from any refund you are otherwise entitled to.

For the purposes of this section, not completing required customs steps includes: ignoring the charges until the parcel is returned; disputing the charges until the parcel is returned; and refusing delivery by not paying the charges. Because it prevents the delivery agent from contacting you to collect a customs charge, giving us an incorrect or unmonitored email address or phone number is also treated as blocking clearance.

6.4 Replacement parts sent abroad. Any replacement parts or items we send outside Great Britain are sent using the shipping provider and Incoterm of the original sale.

6.5 International returns. You are responsible for the export formalities on any return sent from outside Great Britain. You must tell us at the time of booking and give us the tracking number. Where import clearance into Great Britain is needed, we may give you specific information you must follow. You must declare the parcel to the postal service or courier as a return of goods, as failing to do so can generate import charges that would not otherwise apply. We will deduct any import duties we incur from your refund.

7. Building, fitting and using our products: your responsibilities

7.1 Assembly is at your own risk. Once a supplied item is unpacked in any way and any part of it is touched with a tool – including but not limited to a soldering iron, snips, pliers, screwdriver, hex key or wire cutters – you accept that the successful fitting or construction, safe powering and any necessary calibration of that product is entirely your responsibility. Section 10.4 explains how this affects returns.

7.2 ESD-sensitive parts. You are responsible for the safe handling of any parts supplied in packaging warning of sensitivity to electrostatic discharge. Please keep these parts in their packaging until you are ready to fit them.

7.3 Connecting to other equipment. You are solely responsible for making sure that anything you build or fit will not damage equipment you connect it to. Damage to your other equipment is your responsibility.

7.4 Safety. Building electronics involves hot tools, sharp tools and mains-powered equipment. Please work safely and supervise anyone under 18. Subject to section 12.1, we are not responsible for injury to you or others, or damage to your property or anyone else’s, arising from the construction or use of products bought from us.

8. Build and debugging support

8.1 Support is offered as a goodwill gesture. Although construction, safe powering and calibration remain your responsibility under section 7, we provide build support and debugging advice as a gesture of goodwill. We do this wherever we can, within the limits of our own experience and knowledge, and at the speed our workload allows.

8.2 What we can and cannot promise. We cannot guarantee that you will end up with a working device. We will replace any parts that we jointly identify as faulty. Your patience and co-operation are essential in working out whether a part is genuinely faulty or whether the cause is a build error. You will probably need a digital multimeter.

8.3 Parts not supplied by us. We can only provide build and debugging support where the build uses the parts we supplied. If you solder or fit other parts, we are unable to offer support on that build.

8.4 We do not repair or complete your build work. This section applies to DIY products. We do not repair, rework, complete or debug in person any DIY product you have begun to build. That includes desoldering, replacing parts you have fitted, correcting build errors and finishing part-built PCBs. Where the components we supplied were of satisfactory quality, all assembly is your work, and taking it on is not something we are able to offer. If a part we supplied turns out to be faulty, sections 8.2 and 9.3 explain what we will do. Please do not send part-built or fully built modules back to us – see section 10.5.

9. Missing, incorrect or faulty items

9.1 Missing or incorrect items. If anything is missing from your order or is not what you ordered, please tell us within 30 days of receiving it so we can put it right. Replacements sent outside Great Britain are sent on the Incoterm of the original shipment.

9.2 Faulty items. If an item is faulty, please contact us using the process in section 11 and we will arrange a replacement or refund. As a consumer you have statutory rights in respect of goods that are not of satisfactory quality, not fit for purpose or not as described, and those rights are unaffected by these terms.

9.3 Faulty parts in DIY products. Where a fault appears during a build, section 8.2 applies: we will work through the diagnosis with you before a part can be identified as faulty. Once we have jointly identified a part we supplied as faulty, we will send you a replacement part. Our responsibility is to replace the faulty part. We cannot compensate you for build time. Where removing a faulty part damages a component or PCB that was sound when supplied, please tell us and we will look at it case by case.

9.4 Faulty assembled products. Where we have supplied a product ready-built, your full statutory rights apply to it. Assembled products purchased from 1 January 2026 onwards also carry a three year warranty from us, which sits alongside those statutory rights rather than replacing them. If an assembled product is faulty we will normally offer a replacement or a refund rather than a repair, as we do not operate a repair workshop. If you are a consumer you may be entitled to ask for a repair instead, and we will discuss the available options with you. Where the manufacturer offers its own warranty, that sits alongside your rights against us rather than replacing them.

9.5 Products made by other brands. Many of the assembled products we sell are built by other manufacturers. Where a fault is one the manufacturer is better placed to resolve – firmware, calibration, proprietary parts or a PCB-level repair – we will offer to put you in touch with them and will help keep the case moving. This is usually the fastest route to a working unit, and many manufacturers offer their own warranty on top of your rights against us.

This is an offer rather than a requirement. We sold you the product, so our obligations under section 9.4 stand whichever route you take, and you are never obliged to deal with the manufacturer instead of us. If the manufacturer does not resolve the fault, please come back to us. If you are a business customer, we may ask you to deal with the manufacturer directly.

9.6 Faults reported within 30 days. If you tell us an assembled product is faulty within 30 days of delivery, you have a short-term right to reject it, and we will deal with that with you directly rather than referring you elsewhere. After 30 days the remedies in section 9.4 and the route in section 9.5 apply. Nothing in this section shortens the period within which you can bring a claim.

10. Returns, refunds and exchanges

Please read this section together with section 11, which sets out the steps to follow. Goods must never be sent back without arranging a return first. Returns sent to us without an agreed RMA will be refused and returned to sender unopened, and the sender becomes liable for the return postage cost.

10.1 Our returns window: 30 days, anywhere in the world. We accept returns for refund where you tell us within 30 days of delivery, and the goods arrive back with us within 30 days of the return being agreed. For deliveries outside Great Britain, the 30-day period runs from the date the parcel arrives in the destination country. Returns under this window are refunded on the product cost only.

This 30-day window applies to everything we sell, wherever in the world it was delivered. Two scenarios carry conditions on what you get back regardless of the time you have to ask us about it: items that have been built or fitted, which are assessed on inspection under section 10.5, and gift vouchers, which cannot be refunded once redeemed – see section 10.8.

10.2 Statutory cancellation rights (consumers). Separately from our own window above, if you are a consumer in the United Kingdom you have a legal right to cancel your order within 14 days of receiving the goods and to return them within 14 days of telling us. Where you exercise this right we will refund the price of the goods together with the standard outbound delivery charge, subject to any deduction for diminished value under section 10.5. We may deduct any import duties we have incurred on the return.

If you are a consumer elsewhere and the law of your country of residence gives you an equivalent cancellation right, it applies to your order in the same way. Where it does not, section 10.1 is what applies to your order.

This statutory window is shorter than our own 30 days, but it also covers the outbound delivery charge, which section 10.1 does not. If you are cancelling within 14 days you may be better off relying on it, and you are welcome to ask us which route leaves you better off.

10.3 Returns outside the 30-day window. Beyond 30 days we are under no obligation to accept a return. We may agree to one under extenuating circumstances, entirely at our discretion, and only where the goods are unused, unbuilt and in resaleable condition. Where we do agree, we deduct a restocking fee of 25% from the product cost. This fee never applies to faulty or incorrectly supplied goods, and never where you are exercising a statutory right under section 10.2.

10.4 Return postage and costs. You pay the cost of returning goods to us. If we agree that the item is faulty, we can discuss reimbursing some or all of that cost. We can only issue a refund once the physical item is back with us. When you return an item that is not faulty or incomplete, the refund covers the product cost only – not the outbound shipping cost, or import taxes and clearance costs we have incurred – and this applies even if your original order was sent with free shipping. This section does not affect your rights under section 10.2.

10.5 Items that have been opened, fitted or built. Where a supplied item has been unpacked and any part of it has been touched with a tool (see section 7.1), your eligibility for a refund depends on our inspection of the goods once they are back with us. We cannot confirm a refund from photographs alone. Items that are not faulty but have been altered by fitting or assembly – including scratched, scuffed, deformed, snapped, or otherwise no longer in “as new” condition – are refunded on a partial or discretionary basis reflecting the reduction in value, subject to a minimum deduction of 25% of the product cost.

10.6 Exchanges and swaps. Exchanges are discretionary and depend on current stock. Please request an exchange within 30 days of delivery; once agreed, the goods must reach us within 30 days. This does not affect your legal right to a refund.

10.7 Clothing. Clothing must be returned within 30 days of delivery, unworn and unwashed, with any tags attached and in its original packaging. The exception is where the labelled size does not match the actual size, in which case please contact us whatever the condition of the packaging. You pay the cost of return postage, which for orders outside the UK may exceed the value of the item. Where we refund outbound delivery under section 10.2, this is limited to our standard UK delivery charge. We can only refund or replace once the item is back with us.

10.8 Gift vouchers. Gift vouchers are valid for 12 months from the date of issue. A voucher can be spent across more than one order, and any unspent balance stays on your code. The 12-month period runs from the original date of issue and is not extended by partial use. If your voucher has expired, please contact us – we are normally happy to extend it by a further 12 months, although extensions are at our discretion and need to be requested by you.

An unredeemed voucher can be cancelled within 30 days of being issued to you, and we will refund what you paid. Once a voucher has been redeemed, in whole or in part, it cannot be refunded or exchanged for cash. Vouchers may be passed on to someone else as a gift. Where a voucher was used towards an order that is later refunded, we return the voucher portion as voucher credit rather than cash.

We are not currently able to offer gift vouchers to customers in the European Union, and vouchers cannot be applied to orders shipping to the European Union. This is a consequence of the EU IOSS VAT rules.

10.9 Business customers. Returns from business customers are entirely at our discretion, other than for goods that are faulty or not as ordered.

11. How to arrange a return (RMA process)

Step 1 – Email us. Contact [email protected] within the applicable window in section 10, stating clearly:

the reason for the return or refund;
your thonk.co.uk order number (for example #87654);
your payment method;
your payment transaction ID, or the time, date and reference of a UK BACS transfer.

Step 2 – We respond. We will reply within 1–21 days with one of the following:

acceptance of your request, together with a unique RMA number (for example RMA****);
a request for further information;
a refusal – for example, where the request falls outside the return period.

Step 3 – Send the goods back. Once we have agreed the return, address the parcel to the return address shown on your original parcel and include the RMA number.

Step 4 – Inspection and refund. We inspect the goods on arrival and process your refund in line with section 10. Refunds are made to the original payment method.

For returns from outside Great Britain, section 6.5 also applies. You must always mark your parcel as a return with the postal service or courier to remove some avoidable additional costs.

12. Our liability to you

12.1 What we never exclude. Nothing in these terms excludes or limits our liability for death or personal injury caused by our negligence, for fraud or fraudulent misrepresentation, or for anything else that cannot lawfully be excluded or limited.

12.2 Assembly, use and consequential damage. Subject to section 12.1, and given that construction, powering and calibration are your responsibility under section 7, we are not liable for damage to other equipment or property, or for loss arising from the construction, calibration or use of products bought from us.

12.3 Consumers. If you are a consumer, we are responsible for loss or damage you suffer that is a foreseeable result of our breaking this contract or failing to use reasonable care and skill. We are not responsible for loss or damage that is not foreseeable, or for any loss arising from your use of the goods for a commercial purpose.

12.4 Business customers. If you are a business customer, subject to section 12.1 we are not liable for loss of profit, loss of business, business interruption, or loss of anticipated saving, and our total liability in connection with any order is limited to the price paid for that order.

13. Privacy and your data

We take your privacy seriously. We will never sell or pass the information you give us to a third party for their own marketing purposes, and we comply with UK data protection law. Our Privacy Policy explains what we collect, why, and what rights you have.

14. Intellectual property

14.1 Our site and materials. The content of our website, our product photography and our own build documentation belong to us or our licensors and may not be copied for commercial use without our permission.

14.2 Open-source and third-party designs. Many of the designs we sell as kits, PCBs and panels are created by their designers and released under their own licences. Buying a kit, PCB or panel from us gives you no rights in the underlying design beyond those granted by the designer’s own licence. Please check the licence terms published by the designer before reproducing, modifying or selling a design or any derivative of it.

15. Events outside our control

We are not liable for delays or failures in performance caused by events outside our reasonable control, including carrier and postal disruption or strikes, customs delays, component shortages, extreme weather, fire, flood, war, terrorism, civil unrest, epidemic or pandemic, acts of government, mad kings and despots, industrial action, and failures of public or private telecommunications networks. Where such an event occurs we will contact you as soon as we can and, if the delay is substantial, you may cancel the affected order for a refund.

16. General

16.1 Severability. If any part of these terms is found to be unlawful or unenforceable, the remaining provisions continue in force.

16.2 No waiver. If we do not insist that you perform any of your obligations, or delay in enforcing our rights, that does not mean we have waived those rights.

16.3 Transfer. We may transfer our rights and obligations under these terms to another organisation, and will tell you in writing if we do. You may only transfer your rights or obligations with our written consent.

16.4 Third parties. This contract is between you and us. No other person has any right to enforce any of its terms.

16.5 Governing law and jurisdiction. These terms are governed by the law of England and Wales, and the courts of England and Wales have exclusive jurisdiction. If you are a consumer resident elsewhere, you keep the benefit of any mandatory consumer protection rules of your country of residence and may be able to bring proceedings there.

17. Complaints and contacting us

If something has gone wrong, please email [email protected] with your order number and we will do our best to sort it out. If you would rather write, use our operating address below. If you are a UK consumer and we cannot resolve your complaint, you may be able to refer it to an alternative dispute resolution provider or seek advice from Citizens Advice.

Please do not send goods back without arranging a return first. Returns need to be agreed with us in advance and sent to the address on your original parcel – see section 11.

Operating address Thonk Ltd, Unit 14, Floor 6, Vantage Point, New England Road, Brighton, BN1 4GW

Registered office C/O Ozkan Accountants Ltd, 2nd Floor, Suite 12, Vantage Point, New England Road, Brighton, England, BN1 4GW

Company number 08711466 · VAT GB171499286 [email protected] · www.thonk.co.uk