I'm the only user in my organisation (a small non-profit), and therefore the administrator for the account. When I log into our ArcGIS page, I see this (showing me as admin), but many settings are disabled for me, like this example, with the explanation that I am not an admin.
When I went to the MyESRI site, I could not submit a ticket because I'm apparently not an admin (screenshot). I also cannot "invite" myself to the organisation, since I'm- say it with me- not an admin.
So I'm caught in a loop: I'm the only administrator/user, but don't have admin rights, which prevents me from submitting a proper support ticket.
The root issue I'm actually trying to solve is a public Instant App that keeps asking viewers to log in, but that's a different issue...