Subject: Complaint Regarding Refrigerator

Dear Sir,

I am writing to say that I am not satisfied with the fridge I bought two weeks ago. I have found something wrong with it. The COLD CONTROL （制冷键） doesn't work well. Also, when it starts, it makes a loud noise. I have called your service center several times, but nobody came. I hope you will look into the matter and send someone to repair or replace it. I will get my refund if necessary.

I am looking forward to your reply.

Thank you.

Yours,

Li Hua

Explanation:

Subject: The subject line clearly states the purpose of the letter.

Opening Salutation: "Dear Sir," is used as a formal greeting.

Body: The main content of the letter is written in the first paragraph, detailing the issue with the fridge.

Closing Salutation: "Yours," is used as a formal closing.

Signature: "Li Hua" is the name of the sender, written at the bottom of the letter.

Additional Tips:

Ensure that the letter is written in a clear and concise manner.

Use polite language throughout the letter.

Provide specific details about the issue to make it easier for the recipient to understand and address.

Include your contact information if needed.