What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
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.
I can see that you have a Premium-yearly subscription which renews on 03/24/2017. Your current subscription is being processed through BlueSnap, and unfortunately, subscription over BlueSnap can not have their credit card changed.
So, by going to Account -> Billing -> Update Credit Card, you will be taken to create a new subscription instead of the current one. My recommendation would be to do it and contact us when your subscription is about to renew next year, so we can cancel the current one to avoid double charges.