Unable to access partner account due to lost 2FA phone

I lost my phone used for 2FA for my Microsoft Partner account.  I've tried repeatedly to recover my account, providing multiple supporting documentation, but have not been able to do so.  I've not yet been able to find a phone number to talk with a real person, and all the 'Contact Us' links I can find require you log onto your account in order to access the content, but I cannot log on due to 2FA method lost.  Is this what's considered Catch 22?  Is anybody here able to provide a method of contacting a Microsoft Partner representative without 2FA?