说明：根据下面内容写一封投诉信。 写信日期：3月20日。 投诉人：陈明 投诉对象：百货公司 投诉商品：Smith啤酒 投诉原因：过了保质期，包装与内容不符等 投诉要求：退货或换货 提出希望：尽快回复

参考答案:

March 20Dear Sir I am a regular customer in your department store. I"m writing to complain about Smith beer in your store. Yesterday I bought a dozen of Smith beer in your department store. But when I was going to enjoy the beer at home I found the