范文：
[Your Name]
[Your Address]
[City, State, Zip Code]
[Email Address]
[Phone Number]
[Date]
[Recipient's Name]
[Recipient's Title]
[Company/Organization Name]
[Company/Organization Address]
[City, State, Zip Code]
Dear [Recipient's Name],
Subject: Complaint Regarding [Specific Product/Service]
I am writing to formally complain about the [specific product/service] I purchased from your company on [date of purchase]. I am extremely disappointed with the quality and the service I received, and I hope that you will take this matter seriously and address it promptly.
On [date of purchase], I purchased the [specific product/service] from your store located at [store location]. I had high expectations based on the advertising and the testimonials I had read online. Unfortunately, the product did not live up to these expectations and has caused me considerable inconvenience and frustration.
The issues I encountered with the [specific product/service] are as follows:
1. [Issue 1]: The [specific product feature] did not function as advertised, leading to [consequences of the malfunction].
2. [Issue 2]: The product arrived in poor condition, with [specific defects].
3. [Issue 3]: The customer service I received when I attempted to report the problem was [describe the poor service received].
I have attached photographs and documentation to support my claims. I kindly request that you investigate these issues and take appropriate action to rectify the situation.
I believe that a fair and prompt resolution to this matter is essential. I would appreciate it if you could provide a detailed explanation of how you plan to address these issues and offer a satisfactory solution. Please consider the following options:
1. A full refund or exchange of the defective product.
2. A discount on my next purchase.
3. A gesture of goodwill, such as a gift card or store credit.
I kindly request that you respond to this complaint within [specific timeframe, e.g., 14 days]. Failure to do so may result in me taking further action, including filing a complaint with a consumer protection agency.
Thank you for your attention to this matter. I look forward to a favorable resolution and hope to continue my patronage with your company in the future.
Sincerely,
[Your Name]
常见问答知识清单：
1. 投诉信应该包含哪些基本要素？
2. 如何在投诉信中表达自己的不满？
3. 投诉信中应该提供哪些证据？
4. 投诉信的格式是怎样的？
5. 如何选择合适的收件人？
6. 投诉信中如何写明具体的产品或服务问题？
7. 投诉信中如何提出解决建议？
8. 投诉信中如何表达对未来的期望？
9. 投诉信中如何礼貌地结束？
10. 投诉信后如何跟进？
解答：
1. 投诉信应包含收件人信息、发件人信息、日期、主题、正文（包括问题描述、证据、解决建议、期望）、结束语和签名。
2. 在投诉信中，可以表达自己的不满，例如使用“I am extremely disappointed”或“I am extremely frustrated”等词语。
3. 投诉信中应提供证据，如照片、收据、发票等，以支持自己的投诉。
4. 投诉信的格式应包括信头、称呼、正文、结束语和签名。
5. 选择合适的收件人时，应考虑收件人的职位和职责，确保投诉信能够被相关部门或人员接收和处理。
6. 投诉信中应详细描述产品或服务的问题，包括具体症状和影响。
7. 投诉信中可以提出解决建议，如要求退款、更换产品或提供折扣等。
8. 投诉信中可以表达对未来的期望，例如希望公司能够改进产品或服务，以避免类似问题再次发生。
9. 投诉信可以礼貌地结束，例如使用“Thank you for your attention to this matter”或“I look forward to a favorable resolution”等词语。
10. 投诉信后，可以通过电话、邮件或社交媒体等方式跟进，以确保问题得到解决。
