> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://ker-sun.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).

# Why can't I pay with my credit card?

There may be many reasons why payment may be refused.  
If after trying several times it doesn't work, you can try another payment method (PayPal, check, bank transfer) or call us to make a credit card payment over the phone.  
  
  
**Related answers :**
* [How do I pay by credit card?](/en/article/comment-payer-par-carte-bancaire-1t3yjuh/)