假定你是李明，根據(jù)下面的內(nèi)容寫一封投訴信

1.昨天在超市買的空調(diào)不能正常運(yùn)作；

2.要求超市及時(shí)提供解決方案，如果不能修理好該空調(diào)，將要求退款；

3.寫信日期：12 月 18 日。

注意信函格式！

范文:

December 18

Dear Sirs,

I’m writing to you to complain about the air-conditioner I bought in your supermarket

yesterday.

Unfortunately it doesn’t work properly. I’m really disappointed at the poor quality of your

products. So I hope you can take immediate actions to deal with this problem.

If the air-conditioner cannot be fixed well, I demand a full refund.

Sincerely yours,

Li Ming