How can I purge a user from Office365/Exchange Online

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http://serverfault.com – I'm stuck in some sort of strange loop. I tried to create an office 365 user, and did not have any available licenses. I followed the link to purchase an additional license, then went back and created my new user. You guessed it - I now had two, identical mailboxes. I deleted the Office365 user, and used Powershell to remove the mailboxes. I then attempted to recreate the user, but it failed again because the email address wasn't considered available. Using Powershell: When I run get-mailbox, it does not show anything. When I run get-user, it shows name as "User" and name_ also as user. (HowTos)