投诉信一直是移民类小作文常考的话题，根据笔者多年的教学，发现投诉信一般可以从以下四个思路去发展。
投诉理由：服务不周
投诉信中投诉服务是经常会考到的话题，一般主要集中在对于饭店，宾馆，餐厅，旅行社等服务性行业的投诉，此类书信一般在结构上可分为以下几个部分：
(一) 自我介绍，表明投诉内容以及与收信人的相关性。
(二) 陈述投诉内容，如时间、地点、人物、事件等，并指出对方服务问题所在以及由此而产生的对自己或者家人的影响。
(三) 提出整改建议或者希望得到对方的赔偿或补偿。
让我们结合真题来分析一下：
You just returned from a tour. However, you were dissatisfied with the service you received from the travel agency. Write a letter to the manager of the agency. In your letter,
1. give the details of your tour
2. explain why you were unhappy with the service
3. say what you want the company do for you
题目并无指明具体投诉内容，因此考生选择余地较大，一般来说，建议考生可以考虑旅行社安排的住所不好，比如房间脏等。具体写法如下：
The room was not cleaned on a daily basis and that my bed was made up only every three days.
还可以说房间没有热水，比如：
The hot water was only supplied from 6:00 am to 10:00 pm, which means if I arrived back at the hotel late, it was impossible for me to take a shower with hot water.
此外，还可以围绕吃饭问题进行投诉，如：
The food in the restaurant was disappointing. Not only was it extremely overpriced, but the quality was very poor.
上述所提到的关于服务质量的投诉，大家不难发现里面说的房间，热水，吃饭问题其实换一个服务性行业的考题我们也可以套用。因此我们要熟记这些基本的投诉点。
综上所述即是雅思写作投诉信服务不周的结构分析及基本的投诉点，希望对广大考生有所帮助。