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.
Unfortunately it is not possible to increase the payment submission limits for free. The only option available is to upgrade your account.
Please be noted that you can click on "Get More" section of your account setting page to increase the normal non secure submission limit for free. Please check the screenshot below:
Hope this answers your query.
Do get back to us if you have any questions.