> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://vipgfs.crisp.help/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# 4. My payment didn’t go through.

**Fix:**
* Double check card info or crypto wallet
* Make sure you have sufficient funds
* If using crypto, ensure proper network (e.g. USDT on TRC20)
* Try another method or reach out to [billing@vipgfs.com]