I need to update my subcription payment method

I would like to update my credit card information.

You can update your billing information from your account billing page.  Here is our guide on how to do so:

https://www.jotform.com/help/330-How-to-Update-My-Subscription-s-Payment-Method-FastSpring-

And here is a direct link to the billing page:

https://www.jotform.com/myaccount/billing