投诉信英语作文 关于室友

Hello, I want to complain. I bought a computer on 28 April 2011, but it became broken in just two weeks. I have asked the seller to repair it, however, two week now, but no one come here. What happen? I am very unsatisfy with the service.

英语作文投诉信应该怎么写因为去旅馆住宿，实际与宣传内容不符，应怎么写

Dear sir/madam
We bought the SQ200 cellphone from your company several days ago and found that we can not take pictures and send or receice messanges because of the malfunction which couses us great inconvient.
Would you please check the cellphone and replace a new one for us or get a refound for this.
I hope you could deal with it as soon as possible. Your prompt reply will be highly appreciated.
Best wishes
Yours
Wang Hua