Is there a way to check the form submissions?

I have been contacted by a few individuals who have said they have submitted a form, but I can see no record in submissions. Is there a way to check

Yes, you can check your form submission page, which will show you the list of submissions that you have received. The guide below will explain how to view your form submissions:

https://www.jotform.com/help/269-How-to-View-Form-Submissions

You can also check your account activity log, which will also show you the submission emails received among other options:

https://www.jotform.com/help/370-How-to-View-Your-Account-Activity-Logs

Do review and let us know if you require further assistance regarding this.