电脑投诉信英语作文（电脑投诉信英语作文80词）

Dear Sir/Madam,
I am writing to express my dissatisfaction with the recent purchase of your product, the的电脑.
Firstly, the computer seems to be working perfectly, but I have noticed that it is very slow. The loading speed of the operating system is very slow, and even the simple tasks such as opening a web browser or playing a video file are taking a long time. This has caused me a great deal of inconvenience, as I am a user of this product for a long time.
Secondly, the keyboard and mouse are both faulty. The keys do not work properly, and the mouse pointer seems to be moving randomly. This has made typing on the computer difficult and time-consuming, as well as making it impossible to click the mouse to take any actions.
Finally, there is a problem with the power supply. The computer is currently working, but I am concerned that it may not continue to work in the future. The power supply is currently functioning, but it is known to have a high risk of failure, and I would like to get a new one as soon as possible.
I would like to request a full refund for the product, as I believe it is not fit for purpose and does not meet the standards that I expect from a computer. I have attached my receipt to this letter as proof of purchase.
Thank you for your attention to this matter, and I look forward to hearing from you soon.
Sincerely,
[Your Name]