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.
Please follow this user guide to upgrade the subscription.
In the Billing Details, make sure that the expiration date you will provide for your Credit Card account is a valid date format in MM/YYYY (see screenshot below for visual guidance)
in the Billing Details...
Please let us know if you are still not abel to upgrade.