I have no idea why one of my Box accounts has locked me out. However it won't accept any password that I would have used on the account. 

I have collaborators on the account that can still use it, however I have been locked out.

The bigger issue is that I can't reset my password as the email account & domain no longer exists. So I have no way of getting the reset email.

is there an option to use a secondary email for verification and password reset? or even better, can I speak to a human about it?