How to Write a Letter of Complaint + Sample


1. Understand the Purpose of a Complaint Letter

A complaint letter is a formal document used to express dissatisfaction with a service, product, or situation. It helps in seeking a resolution by documenting the issue in a professional manner.

2. Gather Essential Information

Before drafting your letter, collect all necessary details:

  • Name of the company, person, or department involved
  • Date and location of the incident
  • Copies of relevant documents (receipts, emails, contracts)
  • Previous communication regarding the issue

3. Format Your Complaint Letter Professionally

Your letter should follow a formal structure, including:

  • Your Contact Information: Name, address, phone number, and email.
  • Date: Mention the date of writing.
  • Recipient’s Details: Name and address of the recipient.
  • Subject Line: A clear summary of the complaint, such as “Complaint Regarding Faulty Product.”

4. Begin with a Clear Introduction

Start with a polite introduction stating the purpose of your letter.

Example:
“I am writing to formally express my dissatisfaction with [product/service] I purchased on [date] from [company/store]. Despite previous attempts to resolve this matter, the issue remains unresolved.”

5. Explain the Issue in Detail

Provide specific details about your complaint, including:

  • What Happened: Describe the problem clearly.
  • When and Where It Happened: Mention key dates and locations.
  • Attempts to Resolve It: Reference any prior discussions or actions taken.

6. Maintain a Professional and Respectful Tone

Avoid aggressive language and focus on facts.

Instead of:
“Your service is terrible, and I am extremely disappointed.”
Say:
“I was dissatisfied with the service I received on [date] and would appreciate a resolution.”

7. State Your Desired Resolution

Clearly outline what you expect as a resolution, such as:

  • A refund or replacement
  • An apology
  • Compensation for damages or inconvenience
  • A policy change or service improvement

8. Provide Supporting Evidence

Attach relevant documents that support your complaint, including:

  • Receipts or invoices
  • Screenshots of emails or messages
  • Photographs (if applicable)
  • Copies of previous complaint letters

9. Request a Response and Set a Deadline

Ask for a response within a reasonable timeframe, such as 14 days.

Example:
“I kindly request a written response to this complaint within 14 days. If no response is received, I may take further action.”

10. End with a Polite Closing

Conclude professionally with:

  • “Sincerely” or “Yours faithfully”
  • Your full name
  • Your signature (if sending a printed letter)

Sample Complaint Letter

[Your Name]
[Your Address]
[City, State, ZIP Code]
[Your Phone Number]
[Your Email]
[Date]

[Recipient’s Name]
[Company Name]
[Company Address]
[City, State, ZIP Code]

Subject: Complaint Regarding Faulty Product

Dear [Recipient’s Name],

I am writing to formally express my dissatisfaction with a [product/service] I purchased from [store/company] on [date]. Unfortunately, the product has not functioned as expected, despite my attempts to resolve the issue through customer service.

The issue with the product is [describe the problem briefly]. I have attached copies of my purchase receipt and previous communication regarding this matter.

I request a full refund or a replacement product at your earliest convenience. I kindly ask for a written response within 14 days. If I do not receive a response, I may consider seeking further assistance.

Thank you for your time and attention to this matter. I hope we can resolve this issue promptly.

Sincerely,
[Your Name]


Frequently Asked Questions

1. Can I submit a complaint letter via email?
Yes, many companies accept complaints via email, but check their preferred method of communication.

2. What if I don’t get a response?
If you don’t receive a response, follow up or escalate the complaint to a higher authority.

3. Should I keep a copy of my complaint letter?
Yes, always keep a copy for your records along with any related correspondence.

4. Can I complain about a service I received months ago?
It depends on the company’s policy, but it’s best to file a complaint as soon as possible.

5. Do I need legal help to write a complaint letter?
No, but legal assistance may be useful for complex disputes.


Conclusion

A well-structured complaint letter increases the likelihood of a positive resolution. By keeping it professional, factual, and polite, you ensure your concerns are taken seriously. If your complaint remains unresolved, consider escalating it to a regulatory body or consumer rights organization.

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