以下这篇内容有没有语法/用词错误

Dear Steam Customer Service,

I have bought a CD-Key on a platform. When I want to activate it, it is said this Key was already activated by another Steam-Account. And the platform will only provide refund when I provide the screenshot about when this Key was activated

I hope you could provide what I need and when possible to which account this CD-Key was bound

Thank you very much

With friendly regards

A Steam-User

你的内容已经表达得很清楚了，但可以稍作修改以更自然和正式。以下是修正后的版本：

________________________________________

Subject: Request for Information Regarding CD-Key Activation

Dear Steam Customer Service,

I purchased a CD-Key from a third-party platform. When I attempted to activate it, I received a message stating that the key had already been activated by another Steam account. The platform has informed me that they will only issue a refund if I provide a screenshot showing when the key was activated.

Could you please provide me with the activation details of this CD-Key, including the date it was activated and, if possible, the account to which it was bound?

Thank you very much for your assistance.

Best regards,

[A Steam User]

________________________________________

修改说明：

1. 标题：添加了明确的邮件主题，便于客服快速了解你的需求。

2. 更清晰的表达： 

o "bought a CD-Key on a platform" → "purchased a CD-Key from a third-party platform"（更正式且明确）。

o "it is said" → "I received a message stating"（更自然）。

3. 更礼貌的请求： 

o 使用 "Could you please" 代替 "I hope you could"，更符合正式请求的语气。

4. 细节补充： 

o 明确说明需要的信息（activation details, date, account）。

5. 结尾： 

o "With friendly regards" → "Best regards"（更通用且正式）。

这样修改后，邮件会更专业、清晰，也更容易得到客服的积极回应。