I suggest use the chatgpt prompt below to write a letter to Amazon MD.
Attach a schedule/table of all 26 adjustments, not just one example. The £0.17 example is small, but the repeated pattern is the stronger evidence.
Chatgpt prompt:
I am an Amazon UK seller. Please help me draft a formal Letter Before Claim / pre-action letter to Amazon UK management regarding disputed Buy Shipping carrier delivery label adjustments.
Important instructions:
* Write in a formal UK business/legal style.
* Do not make aggressive or unsupported accusations.
* Do not say “this is definitely illegal.”
* Do not invent facts.
* Use careful wording such as “appears”, “based on the evidence available”, “not supported by the visible adjustment evidence”, and “please provide the contractual and calculation basis”.
* The letter should be suitable to send before considering a small claim.
* Include a reasonable response deadline, such as 14 days.
* Ask Amazon either to reverse the disputed charges or provide a full written explanation and evidence.
* Make clear that the seller reserves all rights.
* Mention that the seller may consider further action, including a claim through the county court / small claims process, if the matter is not resolved.
* Keep the tone firm, factual, and professional.
Background:
I purchased shipping labels through Amazon Buy Shipping and paid the prices shown at the time of purchase. Amazon later applied carrier delivery label adjustment charges described as “Carrier delivery label adjustment due to under-charged delivery label.”
For at least one example transaction, the seller-entered parcel details exactly matched the carrier-audited parcel details.
Example transaction:
Transaction date: 18/05/2026
Amount already paid: £2.95
Revised carrier charge: £3.12
Extra debit: £0.17
Customer-entered dimensions: 30 × 40 × 15 cm
Carrier-audited dimensions: 30 × 40 × 15 cm
Customer-entered weight: 300 g
Carrier-audited weight: 300 g
Adjustment reason shown: “Carrier delivery label adjustment due to under-charged delivery label.”
Evri has confirmed that the parcel dimensions and weight were correct.
The arithmetic is:
£3.12 revised carrier charge minus £2.95 already paid = £0.17 extra debit.
The key issue is:
The visible adjustment evidence does not show any discrepancy between the seller-entered parcel data and the carrier-audited parcel data. The entered dimensions and weight match the audited dimensions and weight exactly. Therefore, based on the evidence shown, the adjustment does not appear to be a weight or dimension correction. It appears to be a retrospective price/tariff adjustment or Buy Shipping undercharge correction.
Please include this core wording:
“Same entered parcel. Same audited parcel. Different price. This is not supported by the visible evidence as a measurement correction; it appears to be an unexplained post-purchase price adjustment.”
Please ask Amazon to provide:
1. The specific contractual term, policy, or Buy Shipping condition relied upon to make retrospective carrier adjustment charges where the seller-entered dimensions and weight match the carrier-audited dimensions and weight.
2. The precise reason why the original Buy Shipping label was allegedly undercharged.
3. The relevant tariff/rate table or charging rule used to calculate the revised charge.
4. The carrier service code and charging band used.
5. The tax/VAT calculation.
6. Confirmation of whether the undercharge was caused by Amazon Buy Shipping displaying or charging an incorrect price at checkout.
7. A full list of all similar adjustments applied to my account, including transaction dates, original label prices, revised charges, adjustment amounts, entered parcel details, audited parcel details, and stated reasons.
8. Reversal of any adjustment where Amazon cannot show a seller input error or provide a clear contractual and calculation basis.
Please structure the letter with:
* Sender details placeholder
* Amazon recipient placeholder
* Date placeholder
* Subject line
* Introduction
* Background
* Example transaction
* Why the adjustment is disputed
* Information and remedy requested
* Deadline for response
* Reservation of rights / potential small claim wording
* Signature placeholder
Please draft the complete letter now.
