Complaint Letter Generator

How to write an effective complaint letter

A complaint letter formally raises a problem with a company, service provider, or organization and asks for it to be put right. The most effective complaint letters are calm, factual, and specific — they state what went wrong, the impact, and exactly what resolution you want. Fill in the details above and the letter is generated for you to print or save as a PDF.

What to include

• What the complaint is about — the product, service, or issue.
• The facts — dates, amounts, reference numbers, and what happened.
• The impact on you, briefly.
• The resolution you want — a refund, replacement, correction, or apology.
• Your contact details so they can respond.

Keep it professional

Stay polite and factual even if you're frustrated. An angry or insulting letter is easier to dismiss, while a clear, reasonable one is harder to ignore and more likely to get a fair response. Stick to what happened and what you want, and avoid exaggeration.

Strengthen your case

Reference any evidence — receipts, order numbers, photos, or previous correspondence — and mention that copies are attached. A specific, documented complaint signals you're serious and makes it easier for the company to act.

FAQ

Who should I address it to?

Address it to the customer service department, or a specific manager if you know one. For unresolved issues, you can escalate to a higher office or a regulator.

What if I get no response?

Keep a copy and follow up. If the company still doesn't act, you can escalate to a consumer protection agency (such as the DTI in the Philippines) or the relevant industry regulator.

Should I set a deadline?

A reasonable timeframe for a response (for example, 7–15 days) is fair and shows you expect action, without being aggressive.