[简答题]假设上个月你出差去广州，在一家著名的百货公司花了1 200元买了一件大衣。洗后发现褪色厉害。你给商厦写一封投诉信。
内容包括：1) 情况说明；
2) 要求解决问题(全额退款)；
3) 要求尽快答复。
注意写信基本格式。

参考答案: Dear Sir,
I’m writing to make a complaint about the quality of your commodity you sell.
Last month, I went to Guangzhou on business. During my stay, I was impressed by the prosperity of the city. And I bought an overcoat, which cost me A B00 yuan. But after I washed it at home, I found it faded a lot. I cannot wear it any more.
I understand yours is a famous department store in Guangzhou, so I write to you, in the hope to settle my case. That is, I need a complete refund.
Hope to hear from you soon.
Sincerely yours,