Formal Complaint to Trader Letter: Free Template and What to Include

If you need to send a formal complaint before escalating to Trading Standards, a written letter is the recommended first step — it creates a clear record and shows you're pursuing the matter formally. Below is what a strong formal complaint to trader should include.

What this letter needs to cover

• Identify the goods or service
• Purchase date
• Price and reference number
• Describe the issue in detail with dates
• Reference the Consumer Rights Act 2015 requirements for satisfactory quality and reasonable care and skill
• Set out the remedy sought (refund
• Repair
• Replacement or compensation)
• Give 14 days to respond
• Warn of next steps including small claims court or trading standards

Why a formal complaint letter matters before Trading Standards

Trading Standards generally expect you to have given the trader a genuine opportunity to resolve the issue directly before they get involved — a clear, formal written complaint creates exactly that record. It also strengthens any later claim, since it shows a reasonable, documented attempt at resolution rather than an immediate escalation.

What to include before you send it

• What you bought, when, and from where, with any order or reference numbers
• A clear, factual description of the problem
• What outcome you're seeking — repair, replacement, refund, or compensation
• A reasonable deadline for a response, typically 14 days

Know which consumer right applies to your situation

Under the Consumer Rights Act 2015, goods must be of satisfactory quality, fit for purpose, and as described. Within the first 30 days, you're generally entitled to a full refund for faulty goods. After 30 days but within 6 months, the trader normally gets one opportunity to repair or replace before you're entitled to a refund or price reduction. Being specific about which stage applies to you strengthens your position considerably.

Frequently Asked Questions

What if the trader ignores my letter completely?
After a reasonable deadline has passed with no response, you can escalate to Trading Standards, or pursue the matter through the small claims court for lower-value disputes.

Does it matter if I paid by card or cash?
Your consumer rights against the retailer apply regardless of payment method, though paying by credit card can give you additional protection under Section 75 for purchases between £100 and £30,000.

[Your Name]
[Your Address]
[Your Postcode]
[Your Phone Number / Email]
[Trader / Company Name]
[Trader Address]
[Date]

Dear [Name of Manager or Complaints Department],

Subject: Formal Complaint – [Account / Order Number]

I am writing to raise a formal complaint regarding [briefly state the problem, e.g., the substandard car repair service / the poor installation of my kitchen] provided by your company on [date].

My complaint relates to the following factual events:
* [Provide a clear timeline of events. Include dates, times, what was promised, and what went wrong. Stick strictly to the facts.]

Under the Consumer Rights Act 2015, [goods must be of satisfactory quality, fit for purpose and as described / a service must be carried out with reasonable care and skill].

This situation has caused significant inconvenience, specifically:
* [Briefly describe how this has impacted you, e.g., I have been left without a working vehicle for two weeks / I have had to pay another professional to assess the damage].

To resolve this complaint, I am seeking the following outcome:
* [State clearly what you want, e.g., a refund, a repair, a replacement, the work to be redone properly at no extra cost, or compensation of £XXX].

If this matter cannot be resolved satisfactorily through your internal complaints procedure, I will look to escalate this to [the relevant Alternative Dispute Resolution (ADR) scheme or Ombudsman / Trading Standards / the small claims court].

I look forward to receiving your written acknowledgment and your response within 14 days.

Yours sincerely,

[Your Signature]
[Your Printed Name]