JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
You can view your payment and invoices details from the "Billing" section of your user panel. So to change your credit card details please follow these steps.
1. Login into your JotForm account
2. Click on the User icon on right-top corner and click on Account
3. Click on Billing from the left side menu items
4. Now, click on Change Credit Card to enter your new credit card information.
Hope this information helps.
Please get back to us if you need further assistance.