【正确答案】[范文]
   
Dear Sir or Madam,
   I am a regular customer of your department store. I'm writing to complain about Smith beer bought in your store.
   Yesterday I bought a dozen Smith beer in your department store. But when I was going to enjoy the beer at home, I found the beer has already passed its expiry date. Meantime, the packages are not in accordance with the contents.
   So I hope you can take immediate action to deal with this matter and refund my money or exchange the beer for me. I am looking forward to receiving your reply as soon as possible.