Dear ______，

I am ______(自我介绍)。 I feel bad to trouble you but I am afraid that I have to make a plaint 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 ______(提出推荐和请求)， 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