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 do that by making a test submission. It will redirect your users to the Paypal page (assuming your are using the Paypal standard checkout/express integration.
First, make sure that you have entered the correct merchant email in the integration.
After than, make a test submission, it will direct your users to this Paypal payment gateway for secure transactions. The merchant email or the business name will show up there.
Please do also take note that when users did not complete the transaction or payment, let's say they left the payment gateway page, the submission will be marked as "Incomplete Payment", to learn more about it, you can check this guide: http://www.jotform.com/help/135-How-to-View-Incomplete-Payments
If you want to further check, you can make a test transaction.
I hope this helps.