1、第一部分：说明投诉问题
I must complain about …
I am not satisfied with …
I feel something should be done about
I am writing to inform （告知 ， 代替tell） you that I find … unsatisfactory
I am writing to express / air dissatisfaction / disappointment / concern regarding …
2、第二部分：描述具体情况
The noise disturbs my sleep so that I can't concentrate during the work time , and as a result , I have made several mistakes these days .
For me this environment is very difficult to make studies and I need a quiet room .
3、第三部分：期待解决方案
I expect to hear from you soon .
Please give this matter your immediate attention .
I would be very grateful （感激，代替thanks） if you could look into the matter as soon as possible .
And I am looking forward to an early reply .
It is high time you took some measures to solve …
I hope you will take steps to rectify （纠正、改善，代替improve） this situation soon .
I believe you will take my complaints seriously .
I would ask you to give back my money , or I would file my complaint （投诉） to the authorities concerned （相关部门） .
【英语作文投诉信常用句型 英语作文投诉信内容】To solve this problem / surmount this difficulty / improve the situation / crack this hard nut （解决问题） , I hope to draw the attention of the authorities concerned .
