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.
As I've checked, you seem to have a free plan. So that, if you want to remove JotForm Branding, you should upgrade your account.
Please find the screen below to see where this feature places and the interface directs you to upgrade your account:
For the information about JotForm pricing, please find the link: https://www.jotform.com/pricing/
If you need further assistance, do not hesitate to contact us.