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.
To change your credit card information, you can follow our guide here on How to Update My Subscription's Payment Method (FastSpring). Alternatively, you can also choose to upgrade your account again and simply enter your new credit card info during the upgrade.
If you need further assistance with your upgrade, feel free to let us know.