Some time ago I got our business verified on Facebook, and many apps have been connected to this business account. But the last few months I get an error when trying to create a new app and connect it to our business account, either in the process of creating the app, or later under App Settings -> Basic -> Business verification.

Earlier on I got a more generic error like "Unexpected error, please try again later" or something like that. Now I am getting "You have been temporarily blocked from performing this action."

This has been going on for months, and I have no idea why this is happening, and no way to contact Facebook support for help. Is there any way to fix this?