BuildMyEvidence · guide
How to Document a Consumer Complaint
The short answer: To document a consumer complaint, keep the receipt or a record of purchase, photograph the fault, save every message with the seller, and note any promises made — all dated. A consumer complaint comes down to the receipt, the fault, and the dates, so a clear record is what gets you a refund, repair, or replacement.
Last updated Oct 6, 2026
Written by Dave Shelton, founder of BuildMyEvidence. Thirty years in business taught him that the person with a clear record gets taken seriously.
Chasing a refund is easier when you can show what you bought, what went wrong, and what you were promised. This guide shows you how.
What kinds of consumer complaints should I document?
Common ones include:
- A product that's faulty, broken, or not as described.
- Service you paid for that wasn't delivered.
- A refund or warranty the seller keeps dodging.
- Promises made at the point of sale, then denied.
- Ongoing calls and emails going in circles.
What should I document?
- The receipt or a record of purchase.
- The contract or warranty, if any.
- Dated photos of the fault or the problem.
- Every message with the seller, dated.
- Notes from any phone calls.
- Any promises made, with the date you were told.
Why is a record of purchase so important?
Because it establishes what you bought, when, for how much, and from whom — the foundation of any complaint. Without it, a seller can question whether you bought the item at all. Keep the receipt (or bank record, order confirmation, or email receipt) and reference it in your complaint.
How do I document a fault?
Photograph or video it clearly, with the date captured. Show the defect plainly, and if relevant, show that it doesn't work or isn't as described. Keep the originals. A dated photo of a fault is far more persuasive than a written description of it, and it can't be argued away as easily.
How do I escalate a complaint effectively?
Put it in writing, referencing your record of purchase, the fault, and what you want (refund, repair, replacement). Keep a dated copy. If the seller won't resolve it, your organized record supports escalation — to a regulator, a consumer protection body, or small claims court. The clearer your dated record, the stronger your position at each step.
When should I start documenting?
From the purchase (keep the receipt), and especially at the first sign of a problem. A record kept from the start is far stronger than one assembled after the dispute has begun.
If a customer has complained about your business
Keep the order, what was supplied and when, and your terms as they stood on the day of the sale. Keep every message with the customer, both ways, and note what you offered to put it right, and when.
Frequently asked questions
How do I document a consumer complaint?
Keep the receipt, photos of the fault, all correspondence, and any promises made — with dates — so your claim for a refund, repair, or replacement is clear.
What should I keep for a consumer dispute?
The receipt or a record of purchase, the contract or warranty, dated photos, every message with the seller, and notes from any calls.
Can I take a consumer dispute to small claims court?
Often yes, up to your state's limit. A dated record of the purchase, the fault, and your attempts to resolve it supports your claim.
When should I start documenting?
From the purchase, and especially at the first problem. A record kept from the start beats one assembled later.
General information, not legal advice. Laws vary by location. For your situation, consult a qualified lawyer or your consumer protection agency. How we write these