投诉信是我们在遇到不满意的服务或产品时，向相关部门或个人表达不满的方式之一。写一封有力的投诉信可以让我们的问题得到更好的解决。下面是一篇关于投诉信的英语作文，带有中文翻译。

Dear Sir/Madam,

I am writing to express my dissatisfaction with the service I received from your company. On May 1st, I purchased a laptop from your company's website. However, the laptop I received was not functioning properly. The screen flickered constantly and the keyboard was not responsive.

I contacted your customer service department on May 5th to request a replacement or refund. However, I was told that I would have to pay for the shipping costs to return the laptop. This is unacceptable, as the laptop was faulty from the beginning and it is not my responsibility to pay for the return shipping.

I would like to request a full refund for the laptop, including the shipping costs. I would also like to suggest that your company review its policies regarding faulty products and customer service, as this experience has been extremely frustrating and disappointing.

Thank you for your attention to this matter.

Sincerely,

[Your Name]

尊敬的先生/女士：

我写信来表达对贵公司提供的服务的不满。5月1日，我从贵公司的网站购买了一台笔记本电脑。然而，我收到的笔记本电脑不能正常工作。屏幕不停地闪烁，键盘也不响应。

我于5月5日联系了贵公司的客户服务部门，要求更换或退款。然而，我被告知我必须支付退货的运费。这是不可接受的，因为笔记本电脑从一开始就有问题，我不应该承担退货运费的责任。

我希望要求全额退款，包括运费。我还想建议贵公司审查其有关不良产品和客户服务的政策，因为这次经历非常令人沮丧和失望。

谢谢您的关注。

此致

敬礼

[您的名字]