No access to account how to restore it?

Summary:

Recently I updated my phone without creating a backup before. The Update didn't gone well so I needed to cleaninstall the OS again. Result of the mess is that I don't have the authenticator app to authenticate me when I try to log in. How can I now delete or restore my access to the OCI Interface? The only thing I have is ssh access to an Ubuntu vm. Is there a possbile way that a staff member can restore the account or delete it so I can create a new one?