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Unauthorised Repair or Overcharge at a Car Repair Shop

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Challenge an unauthorised repair or an overcharge at a car repair shop by comparing the quote, the invoice and the work done.

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Write a letter to a repair shop that carried out work I did not approve or charged more than the quote. Inputs I will provide: shop [SHOP_NAME], job or invoice number [INVOICE_NUMBER], the quote and what I approved [QUOTE_AND_APPROVAL], work done and amount charged [WORK_AND_CHARGE], when I found out [DISCOVERY_DATE], what the shop told me [SHOP_EXPLANATION], what I want [DESIRED_REMEDY].

The letter needs to show the quote, the approval and the final invoice line by line, mark the items I did not approve, ask for their authorisation record, and ask for an adjustment and the return of replaced parts.

Gather before drafting: The written quote, messages or call notes about approvals, the final invoice, photos of the vehicle and old parts, and any second opinion. Realistic outcomes to ask for: Removal of unapproved items, a corrected invoice, a partial refund and the return of replaced parts. A typical reply: Shops may say the extra work was necessary; reply by asking when and how approval was given and for the technician's findings.

Start by making a numbered list of exhibits for the unauthorised repair or overcharge at a car repair shop (number, item, date, purpose), add a gaps column, and then cite the exhibit numbers in the text. Give me the letter plus a cover note of about 50 words, followed by the steps to take for silence or refusal (ask the service manager, then the owner, then the card issuer, then a trade body or consumer agency), then a proof checklist (quote, approvals, invoice, photos, second opinion). Mail the letter by tracked or certified mail with a return receipt, and store the receipt and a scan of the letter.

Use the first person throughout, as an individual and not an agent, and give me no title or credential I do not have. Cite no law or deadline I did not supply; stay within [JURISDICTION] and [RELEVANT_LAW_OR_POLICY_IF_KNOWN] as given, and remind me to check the law with a qualified adviser. Make it steady, civil and clear, with no threats beyond lawful steps, use only the date in [DEADLINE], and say where an outcome is uncertain. None of this is legal advice.

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