在生活中，我们难免会遇到一些不如意的事情，比如产品质量问题、服务不到位或者意外的消费纠纷。在这种情况下，写一封正式而礼貌的投诉信是一种有效解决问题的方式。本文将提供一个英语投诉信的范文，并附上中文翻译，帮助您更好地表达自己的诉求。

English Complaint Letter Example with Translation

Complaint Letter

[Your Name]

[Your Address]

[City, Postal Code]

[Country]

[Date]

[Recipient Name]

[Company Name]

[Company Address]

[City, Postal Code]

[Country]

Dear Sir/Madam,

I am writing to express my dissatisfaction regarding the recent purchase of [Product/Service Name] from your store on [Purchase Date]. The product/service I received did not meet the standards promised in your advertisements, and I would like to bring this matter to your attention.

On [Purchase Date], I bought [Product/Service Description]. Unfortunately, upon using it, I discovered that it was defective/inadequate for its intended purpose. Specifically, [Describe the Problem]. This issue has caused me inconvenience and frustration, as I expected a high-quality product/service based on your reputation.

I kindly request that you address this problem promptly. I believe that a refund/exchange is appropriate in this situation. If there are any additional steps I need to take, please let me know. I hope that we can resolve this matter amicably.

Thank you for your understanding and cooperation. I look forward to your response.

Yours faithfully,

[Your Name]

投诉信

[您的姓名]

[您的地址]

[城市，邮政编码]

[国家]

[日期]

[收件人姓名]

[公司名称]

[公司地址]

[城市，邮政编码]

[国家]

尊敬的先生/女士：

我写这封信是为了表达我对最近从贵店购买的[产品/服务名称]的不满。我在[购买日期]购买的产品/服务并未达到贵公司在广告中承诺的标准，我希望您能注意到这个问题。

在[购买日期]，我购买了[产品/服务描述]。不幸的是，在使用后，我发现它存在缺陷/无法满足其预期用途。具体来说，[描述问题]。这一问题给我带来了不便和沮丧，因为我期望的是基于贵公司声誉的高质量产品/服务。

我诚恳地请求您尽快解决这个问题。我相信在这种情况下，退款/换货是合适的。如果有任何其他步骤需要我完成，请告知我。我希望我们能够友好地解决此事。

感谢您的理解和合作。期待您的回复。

此致

敬礼

[您的姓名]

通过上述例子，我们可以看到，一封有效的投诉信应该包括具体的细节、清晰的问题描述以及合理的解决方案建议。同时，保持礼貌和专业是至关重要的，这样不仅能提高问题被重视的可能性，还能维护良好的客户关系。

希望这份范文对您有所帮助！如果您有类似的情况需要处理，可以根据实际情况调整信中的具体内容。