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.
You can simply disable the form, then it will not be available anymore, this guide will help you: How-to-enable-disable-a-form
You can also limit the number of submissions that you want to receive in a form, here is the guide that will help you to do that: How-to-limit-submissions-in-a-form
If this does not help you, please let us know and we will be glad to further help you.