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How to Write a Complaint Letter with AI (Free)
A calm, clear complaint gets results faster than an angry one. AI helps you stick to the facts and ask for exactly what you want.
The top tools
3
GeminiBest for: Works well if you already use Gmail and Google
Free (paid plans available)
Open Gemini ↗Free (paid plans available)
How to do it, step by step
- Write down what happened, the dates, and any order or claim numbers.
- Ask an AI chat app: "Write a polite but firm complaint letter to [company] about [problem]. I want [refund/repair/answer]."
- Paste in your facts and numbers.
- Read it and remove anything that isn't true or isn't needed.
- Send it by email or mail, and keep a copy.
Tip: Always say exactly what you want and give a date, like "please reply within 14 days."
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Picked by UniHive. Prices and free plans were checked in October 2026 and can change, so check the tool's own site before you pay for anything. UniHive isn't paid by any of these tools.