Shipping and returns

Last updated 12 November 2026

Shipping

• The shop shows where we ship and how long it takes before you pay. Shipping is free.
• We email you when your order ships. Your account page shows the tracking number once there is one.
• Pre-orders ship in the order they were placed. If we're going to miss the date we gave you, we'll email you, and you can cancel for a full refund.

Returns

• All sales are final: we don't take back working units because you changed your mind. Please check you have a TI-84 Plus CE or TI-84 Plus CE Python before ordering.
• Faulty, damaged or wrong item? That's covered below: we'll replace it for free.
• Wrong address or ordered by mistake? Contact us before it ships and we'll cancel the order and refund it in full.
• For any return we accept, you pay the postage to send the item back to us. Use a tracked service and pack it carefully: we can't accept items that are lost or damaged on the way back.

Faulty or damaged

• If your dongle arrives damaged or stops working because of a fault within 90 days of delivery, we'll replace it.
• You pay the postage to send the faulty dongle back to us; we pay to ship the replacement to you. Use a tracked service: we can't replace a return that never arrives.
• This doesn't cover damage from drops, accidents, water, bent or broken connectors, opening the case, or changes to its software.

How to make a claim

• Contact us within 90 days of delivery with your order email and order number.
• Send clear evidence of the problem: a short video showing the dongle plugged into your calculator, what you do, and what goes wrong. For damage in shipping, add photos of the dongle and the package, taken within 7 days of delivery.
• We may ask a few questions or for more evidence, and may ask you to try some troubleshooting steps first. Most problems are fixed by setting up WiFi again or updating 84GPT.
• If we confirm a fault, we'll tell you where to send the faulty one (at your cost), and send the replacement once it arrives.

When we may decline

• We decide each claim after reviewing the evidence, and we may decline a claim that doesn't show a fault covered above, that's made after the warranty period, or where the evidence is missing or unclear.
• We may also decline claims that look misused, altered or fraudulent, and claims for items not bought from 84gpt.com.
• If we decline a claim, we'll tell you why. This policy doesn't take away any rights you have under consumer law where you live.

Plus

You can cancel Plus at any time from your account page and keep it until the end of the month you've paid for. If you were charged for a month you didn't mean to renew, contact us within 7 days and we'll refund it.

Your calculator

84GPT only installs regular apps and programs, which you can delete from the calculator's memory menu at any time. If something goes wrong, contact us and we'll help you put the calculator back the way it was.