【(完整版)英语投诉信范文】在日常生活中，我们可能会遇到各种问题，比如商品质量不佳、服务态度差、物流延误等。当这些情况影响到我们的权益时，写一封正式的英文投诉信是表达不满和寻求解决的重要方式。以下是一篇结构清晰、内容完整的英语投诉信范文，适用于多种场景。

Subject: Formal Complaint Regarding [Product/Service Name]

Dear [Customer Service Department / Manager's Name],

I am writing to formally express my dissatisfaction with the recent purchase of [product/service name], which I received on [date]. Unfortunately, I have encountered several issues that have significantly affected my experience.

Firstly, the product arrived damaged. Upon opening the package, I found that [describe the damage, e.g., "the item was broken" or "the packaging was torn"]. This is not acceptable, especially since the product was advertised as being in good condition.

Secondly, the customer service I received was unhelpful and unresponsive. When I contacted your support team via [email/phone/social media], I did not receive a timely reply, and the information provided was unclear. This has made it difficult for me to resolve the issue.

I would appreciate it if you could take the following actions:

1. Provide a full refund for the product.

2. Offer a replacement or repair if possible.

3. Improve your customer service response time and communication.

I hope you will take this matter seriously and respond at your earliest convenience. Please let me know how you plan to resolve this situation. I expect a prompt and satisfactory resolution.

Thank you for your attention to this issue.

Sincerely,

[Your Full Name]

[Your Contact Information]

[Order Number, if applicable]

使用说明：

- 请根据实际情况填写方括号中的内容。

- 如果是针对服务的投诉，可将“product”替换为“service”。

- 可适当调整语气，使其更正式或更直接，视具体情况而定。

通过这封投诉信，你可以清楚地表达自己的不满，并提出合理的诉求，有助于推动问题的解决。希望这篇范文能对你有所帮助！