急求一封投诉信英文作文.注意信函格式!

Manager Li Hua
The First Department Store Dec 24,2009
Dear Manager
I bought a mobile phone from your store.The model is SQ200.But when I try it,I found out that it didn't function,such as it can not take picture,can not send and receive SMS etc.I want to find a solution on this,either I return it back or get it replaced.I am looking forward to your early reply.
Wang Hua
December 24,2009
亲爱的经理
我在你的商店买了一部手机,型号是SQ200,但我试用时,我发现它不能正常工作,如不能拍照、不能接收和发送短信、等等.我想要找到一个解决办法,退货或者换货.期待你的尽早回复.
王华
2009年12月24日