Oh you must love these ones....
I was trying to edit the User Roles in the new add-ons admin settings in Appointments+ and evidently I didn't understand what I was doing properly and have now bumped myself out and don't have permission to edit any settings!
Can you please:
1. Tell me how to get myself back in the game with minimal disruption to the site, and
2. Point me in the direction of a web page/manual or something that explains the user roles in the Appointments + plugin?