Ghost admin settings preventing me from accessing e-sign features in Acrobat

My nonprofit used to have an enterprise subscription (I think), but now I just have a single, personal Acrobat Pro account. When I try to send docs for e-signatures I get an error message that I'm "no longer able to access e-signatures with this user profile" and I'm directed to contact my admin. I should be the admin. When I try to log into the admin console none of the possible emails work. I assume it's because we no longer have an enterprise subscription. I’ve requested access and it says it’s emailing my admin, but nothing shows up in the any of the possible email addresses that were associated with the old enterprise account. I’ve tried switching between the personal and business accounts - no luck. I feel like I'm in a feedback loop - how do get out so I can use the full functionality of Acrobat Pro?