Complaint Letter Writer
Professional complaint emails that get results
Try it free — no signup needed
See the Difference
Before
I want to complain about bad service at hotel. Room was dirty and staff was rude. I want refund.
After
Subject: Formal Complaint — Unsatisfactory Stay at [Hotel Name] — Booking Ref: [XXXXX] Dear Guest Relations Manager, I am writing to formally raise a complaint regarding my stay at [Hotel Name] from [date] to [date] (Booking Reference: [XXXXX]). During my stay, I encountered two significant issues: 1. The room assigned to me (Room [number]) was not cleaned to an acceptable standard. [Specific details of the issue.] 2. On [date], a member of your staff was dismissive and unhelpful when I raised these concerns at the front desk. As a loyal customer who has stayed at your properties multiple times, I was disappointed by this experience, which fell well below your usual standards. I would appreciate a full refund for my stay and a written acknowledgment of these issues. I look forward to your response within 7 business days. Yours sincerely, [Your name]
Before
Product I bought online is broken. Company not responding to emails. Very angry.
After
Subject: Unresolved Product Defect — Order #[XXXXX] — Formal Complaint Dear Customer Service Manager, I am writing to escalate an unresolved issue with my recent purchase (Order #[XXXXX], placed [date]). The [product name] I received is defective — [describe the specific issue]. I have attempted to contact your customer service team three times via email with no response. Under consumer protection laws, I am entitled to a replacement or full refund for goods that are not fit for purpose. I am requesting a full refund of [amount] or an immediate replacement within 5 business days. If I do not receive a satisfactory resolution, I will escalate this matter to [Trading Standards / BBB / relevant authority] and leave a review detailing my experience. Please confirm receipt of this complaint and provide a case reference number. Yours faithfully, [Your name]
How It Works
Paste Your Text
Type or paste your text into the editor above. Up to 500 characters in the free tool.
AI Processes It
Our AI analyzes your text for improvements and generates a polished version in seconds.
Copy & Use
Copy the improved text with one click. Install the extension for unlimited use on every website.
Why Use This Tool
Assertive but professional
AI calibrates the perfect tone — firm enough to be taken seriously, professional enough to be acted on.
Complete structure
Includes subject line, reference numbers, specific issues, resolution request, and deadline — the format that companies respond to.
ESL-friendly
Non-native speakers often struggle to sound assertive in English. This tool helps you sound confident and professional.
Any complaint type
Works for product complaints, service failures, hotel stays, airline issues, billing disputes, and more.
Who Is This For?
Students
Professionals
ESL Speakers
Content Writers
What Users Say
“Finally a tool that understands non-native English! My emails sound so much better now.”
Priya S.
Software Engineer
“I use this before every important email. The suggestions are always natural and professional.”
Yuki T.
Product Manager
“Way better than Grammarly for my needs. It catches mistakes other tools miss.”
Carlos M.
Marketing Lead
FluentEditor vs Other Tools
| Feature | FluentEditor | Grammarly | QuillBot |
|---|---|---|---|
| Built for Non-Native Speakers | ✅ | ❌ | ❌ |
| Free to Use | ✅ 200/mo | ❌ 5/day | ✅ Limited |
| Catches ESL Patterns | ✅ | ❌ | ❌ |
| Explains Corrections | ✅ | ✅ (Premium) | ❌ |
| Chrome Extension | ✅ | ✅ | ✅ |
| Works on 40+ Sites | ✅ | ✅ | ❌ |
| No Account Required | ✅ 5/day | ❌ | ✅ |
| Pattern Tips for Learning | ✅ | ❌ | ❌ |
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