I write this letter to you to make some complaints about the computer I bought in your store yesterday afternoon. There’s something wrong with it. That makes me extremely unhappy.
The computer cannot be properly shut down when I got it back to the office. When I click the shutdown button, it seems that the machine gives no response. And I’m so annoyed with it.
It’s obvious that you didn’t carefully examine the machine before you sold it. I think your store should take full responsibility for selling me the defective machine. I insist that you give me a satisfactory reply. I do want you to give back my money as soon as possible.