【正确答案】
【答案解析】[参考范文]
Dear Sir or Madam,
I bought an ABC computer at the price of 8,880 RMB in your store on 24th of this month. A salesgirl named Mary served me and it was her who recommended this brand. Just because of her strong recommendation of this brand, I made my decision to but it.
But only three days after I bought the computer, I began to find something wrong with it. First, the image is not good and sometimes, there is no image at all. Then, operating for about half an hour, it will break down.
I want to exchange this one for another or have my money back. Here is the copy of the receipt and you can call me. My phone number is ××××××××.
Yours sincerely,
Wang Lin