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Business Communication

How to write a complaint email

Writing a complaint email well is mostly about order and restraint. This guide covers what to include, what to leave out, and how to raise a problem firmly and factually without sounding aggressive. There is a tool at the end if you would rather start from a draft.

Step by step

1. Decide the single outcome you want from the message. 2. State that outcome in the first two lines. 3. Add only the context the reader needs to act. 4. Make the request or next step explicit. 5. Close briefly and politely.

Common mistakes

Burying the ask at the bottom, over-explaining the background, apologising more than once, and stacking hedges like 'just wondering if maybe'. Cut all four and the message reads more confident, not less polite.

Try it now

Free · no sign-up · English and Bahasa Indonesia.

Frequently asked questions

Does the tool change what my complaint email says?
No. Names, dates, numbers, and requests are preserved exactly. Only grammar, tone, and structure are improved.
Does it work in Bahasa Indonesia?
Yes. The tool never translates — Indonesian input stays in Indonesian, with polite forms like Bapak/Ibu and Mohon.
Is it free?
Yes. No account, no sign-up, and no limit on how many drafts you rewrite.

The tool behind this page

FormalizeTurn casual writing into polished professional text.

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