Complaint letter

Turn notes into a factual complaint with a clear request and deadline, without threats or invented details.

Input

Result

A subject, reference, greeting, facts in order, requested outcome, deadline, closing and sender.

A factual complaint gets better answers than an angry one. This tool puts what happened into order and states the requested outcome clearly. Reference, deadline and sender are added word for word. Numbers and dates that are not in the input stop the result.

Your texts, pages and images are processed on our own servers in the EU. Trust Center

Try it now Pricing

Who it is for

Consumers and small companies dealing with suppliers, landlords or service providers.

Typical uses

Complain about a late or damaged delivery.
Follow up on an unanswered request.
Ask a landlord or service provider to fix a defect.

Example

Input

Facts: Washing machine ordered on 3 March, delivered on 20 March instead of 10 March. Door seal damaged on delivery. Reported by phone on 21 March, no answer since. Recipient: HomeTech Service Requested outcome: Replacement of the door seal or of the machine. Reference: Order 55821 Deadline: 14 April Sender and signature: Paul Novak, Elm Road 2

Result

A subject, reference, greeting, facts in order, requested outcome, deadline, closing and sender.

A fixed example, shortened. Real results are AI-generated: please check them.

Price and limits

Price: usually 1–3 credits
Available with: Free, With package
Input limit: One page with up to 30,000 characters of HTML

Privacy

Processed on our own servers in the EU (Poland). Inputs and results are deleted after 7 days (Free) or 30 days (packages), or right after you see the result if you choose not to store them. Images are deleted right after processing.

In the API

Tool name: complaint_letter. Create a job with POST /api/v1/jobs and fetch the result with GET /api/v1/jobs/{id}. You find your API key in your account.

curl -X POST https://do4u.eu/api/v1/jobs \
  -H "Authorization: Bearer d4u_…" -H "Content-Type: application/json" \
  -d '{"tool": "complaint_letter", "url": "https://example.com/"}'

Full API documentation →

Questions and answers

Is anything added that is not in the input?

The AI writes only from the supplied facts. Numbers, dates and amounts that are not in the input stop the result, and promises such as a guarantee are reported for review.

Are legal claims added?

No. The letter states facts and the requested outcome. It cites no laws.

Is the draft ready to send?

No. It is a draft. Nothing is sent or published, and the text has to be read and approved before use.

Is my text stored?

Only as long as needed: 7 days on Free, 30 days with a package – or not at all if you choose not to store it. Processing happens on our own servers in the EU (Poland).

Can I use the result right away?

Results are AI-generated. Please read them before you publish or send them.