高考英语应用文写作-投诉信
第一段：
自我介绍+背景+目的
I am one of your customers.I ordered a 产品on your website ，which has become a terrible
headache for me.I am writing to express my disappointment .
第二段：
反映问题
Ifeel sorry to trouble you，but I'm afraid that I have to make acompliant.The main problems are as follows.
First of all, 问题一there is something wrong with…
Besides,问题二We are grateful to find that it cannot work normally.
To make matters worse, 问题三which made me
It is necessary for me to …
解决方案
I'm so sorry to have received such poor service，and I believe I have every right to ask you to deal with this problem.I hope that you either return my money or deliver a new 产品to me.I'd like to be informed of the process of your dealing with my complaint.
第三段：
我感激：I will be appreciate it if you look into this case.
I'm waiting for a reasonable explanation and expecting an early reply.
【小试牛刀】
假设你是李华，你购买了一部某外国公司生产的手机，因有质量问题，要求该公司更换。

请根据下列要点，用英文写一封电子邮件。

要点
1.问题:手机不响铃，不能发短信
2.该产品已售完，无法更换型号新，无配件，无法维修。

3.要求:公同应尽快予以更换。

参考词汇:配件spare part
【参考例文】
I am one of your customers.I ordered a mobile phone on your website on 20 Apr, 2020，which has become a terrible headache for me.I am writing to express my disappointment .
I feel sorry to trouble you，but I'm afraid that I have to make acompliant.The main problems are as follows. First of all,the mobile phone does not ring and messages cannot be sent out. Besides，all the mobile phones of the same model were sold out, so it is impossible for me to exchange a new one. To make matters worse,here are no Spare parts available, and therefore, it cannot be fixed at the local store A mobile phone is a very important tool in my daily life.I contacted the saleswoman but the problem of my mobile phone could not be effectively solved.I'm so sorry to have received such poor service，and I believe I have every right to ask you to deal with this problem.I hope that you either return my money or deliver a new one to me.I'd like to be informed of the process of your dealing with my complaint.
I will be appreciate it if you look into this case. I'm waiting for a reasonable explanation and expecting an early reply.
Sincerely yours,
Li Hua。