> For the complete documentation index, see [llms.txt](https://doc.thordata.com/doc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.thordata.com/doc/faq/payment-problem/what-should-i-do-if-i-buy-the-wrong-package.md).

# What should I do if I buy the wrong package?

When users make their first purchase, due to a lack of understanding of the differences between different proxy types and an unclear understanding of the proxy type required for their own business needs, they may choose the wrong proxy type package to purchase. But you don’t have to worry, because in this case, Thordata supports package replacement services.

If you purchased the wrong proxy type package, you can contact us via email **<support@thordata.com>** and provide the following required information:

1. Your Thordata username
2. The package you are currently purchasing
3. The order number of your current package purchase
4. The package you wish to change
5. Please tell us the reason for your purchase error, which will help us improve our service and avoid similar situations in the future.

After receiving your email information, our staff will contact you and change your package.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://doc.thordata.com/doc/faq/payment-problem/what-should-i-do-if-i-buy-the-wrong-package.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.