If you do not receive a username verification code, try having the code sent to the alternate option (i.e. if you sent the code to your email, try retrieving your code via text).  If this does not work, reach out to your provider's support team...

If you receive this message when trying to register, it could be for a few reasons:  You have already registered using that invite and it’s no longer active  The invite has expired  The invite was deleted by your organization  What can you do? ...