User invitation to team never arrives

We sent an invitation to a user that didn't exist. After that point he tried to register an account with bitbucket but was told the account already existed with Atlassian. However, the reset password link said it was successful but did not send an email. Subsequent attempts to resend the original invitation and password resets were also not received.

We are willing to delete the account and start over (not the organization, the user). We just want the bitbucket and atlassian accounts to be "linked" and allow the employee to log in and do work.