雅思G类考生较少，所以对于G类的教材也比较少。在雅思G类小作文中，投诉信一直是常考话题，小站老师分析认为，G类小作文投诉信可以从以下几个思路去发展：
一、投诉理由：服务不周
(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.
二、投诉理由：质量低劣
(一)表明投诉原因以及与收信人的相关性。
(二)陈述投诉内容，如购买的时间、地点、人物等，并指出产品具体问题所在以及由此而产生的后果。
(三)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 have recently made a purchase from a department store in another town but found some problems with it after you returned home. Write a letter to the manager. In your letter,
1. say what product you have bought
2. explain the problems
3. say what you would like them to do
题目并无指明具体产品，因此考生选择余地较大，一般来说，考生可以考虑服装。关于服装的投诉点，一般可以说新买的衣服褪色问题严重，品质有问题。
具体写法如下： The color of the sweater faded heavily and even dyed other clothes.
还可以说标签和配件丢失，比如： I put on the shirt that day when I returned home and found the buttons on the left sleeve were missing. Also, I couldn’t find the label of the shirt, so I was unable to know the proper way of washing or hanging it.
小站建议：考生可以在写投诉信的时候，参考上处的两个理由，以此作为切入点，这些理由可以被认为是“百搭理由”，适合套用在任何投诉信件中。
