Written by: Zhang Ming, Sales Manager of Holiday Department Store: I bought a mobile phone last month, and sometimes it's annoying to turn it off silently and write a complaint letter.

This question is worth stumping everyone. Let me apologize and write it down:

Dear manager:

I bought a mobile phone in the holiday department store last month. You sold it to me. I am very satisfied with this mobile phone. A few days later, I found some problems with this mobile phone. I was very upset. It had no sound, and sometimes it would be turned off. I want to exchange it for a new one. I hope you can solve the problem for me. I don't want to take extreme measures to complain.

your

Zhang Ming