> For the complete documentation index, see [llms.txt](https://isbm.savimbo.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://isbm.savimbo.com/practice-guide/zh-cn/plans-billing/ji-fei-chang-jian-wen-ti.md).
# 计费常见问题
我何时被收费？
您会在首次订阅之日被收费，之后则根据计费周期，每月或每年在同一日期收费。您可以在以下位置查看下一次收费日期： **设置 → 账单 → 概览**.
你们接受哪些付款方式？
我们接受所有主要信用卡和借记卡，以及年度 Enterprise 套餐的银行转账。目前我们不接受 PayPal。
我可以申请退款吗？
如果您在首次购买或续订后的 14 天内，且在此期间未对平台进行重大使用，我们提供全额退款。超出该窗口后，不提供未使用时长的按比例退款。 [联系支持](https://example.com/support) 以申请退款。
我如何获取发票？
每次收费后，发票都会自动通过电子邮件发送。您也可以从以下位置下载过往发票： **设置 → 账单 → 发票**。如需在发票中添加账单地址、VAT 号码或采购订单号，请前往 **设置 → 账单 → 账单详情**.
你们支持 VAT 豁免吗？
是的。如果您的组织享有 VAT 豁免，请在以下位置添加您的 VAT 号码： **设置 → 账单 → 账单详情** ，系统将其应用于未来的发票。我们无法追溯调整过去的发票。
如果我的付款失败会怎样？
如果付款失败，我们将在随后 7 天内重试，并向您发送电子邮件通知。如果在该期间内仍未解决付款问题，您的工作区将降级为免费版。您的内容不会被删除。
我可以为不同工作区分别计费吗？
可以——每个工作区都有各自的账单。如果您管理多个工作区，每个工作区都可以使用不同的套餐并分别计费。
---
# 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, and the optional `goal` query parameter:
```
GET https://isbm.savimbo.com/practice-guide/zh-cn/plans-billing/ji-fei-chang-jian-wen-ti.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
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.