导语：我们大家都知道，每个公民都有维护好自己权益的义务，所以日常生活中发生一些小摩擦我们当然要理智的去处理，那么投诉信是不是一个很好的办法呢?下面是yuwenmi小编为还在备考的同学整理的优秀英语素材，欢迎阅读与借鉴，谢谢!
Dear_______,
I am . (自我介绍) I feel bad to trouble you but I am afraid that I have to make a complaint about_______.
The reason for my dissatisfaction is ______________(总体介绍). In the first place,_________________________(抱怨的第一个方面). In addition, ____________________________(抱怨的第二个方面). Under these circumstances, I find it ___(感觉) to ____________________________(抱怨的方面给你带来的后果).
I appreciate it very much if you could_______________________(提出建议和请求), preferably __________(进一步的要求), and I would like to have this matter settled by ______(设定解决事情最后期限).
Thank you for your consideration and I will be looking forward to your reply.
Yours sincerely
Li Ming