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.
To remove the current payment setup, simply delete your form's payment field.
Then if you are prompted to keep the products, select No.
Once that is done, you can now add a new payment field and add new products to your setup.
For more info on payment tools, you can also check out this guide: Mastering Payment Form Integrations with JotForm