# Billing Information

You need to enter a few information to upgrade your plan to other than **Free (Basic)**:

* Billing email
* Name or Company
* Address
* City
* Country
* Postal code

You set your billing information on your profile page (click on your initials in the top right corner) or before first purchase (click on your initials the current plant in the top right corner and on the current plan) then select plan you want and fill out modal form.


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# Agent Instructions: 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://docs.decisionrules.io/doc/v1/billing/change-billing-information.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.