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.