考研应用文的万能模板：投诉信2

　　模板2：

　　To Whom It May Concern，

　　I am writing to complain about the poor service of your I received when .

　　The reasons for my dissatisfaction lie upon three points as follows: 1) ; 2) ; 3) . Under these circumstances, I find it difficult to .

　　I am sure that you are able to thoroughly understand my discontent, which you are bound to replace with a satisfactory solution. I would be grateful if you could as soon as possible.

　　Yours sincerely,