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.
If I understand you correctly, you're having an issue with embedding the form to your Facebook page. May I ask where exactly do you get this "no permission" error?
In the Publish wizard, when you click the "Add JotForm Tab" button in the Facebook platform, a pop up will appear. The pop-up will ask you to provide your username and password for authentication.
Once you are authenticated, you will be able to add the form to a Facebook Tab.
Please check this updated user guide here: https://www.jotform.com/help/22-Adding-a-Form-to-Your-Facebook-Page.
If this is not what you're referring to, please let us know. Also, please provide more details about the issue. It would be helpful as well if you can provide a screenshot.