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.
Are you referring to upgrade your account using a Mastercard? If so, yes. You can use all the major credit cards to pay for the upgrade. I have checked your account and it seems that you have already upgraded your account to Bronze monthly subscription plan.
If you are referring to something different or need any further assistance, please let us know. We will be happy to help!