I just signed up, got denied while I was at work but accepted when I tried at home. I'm assuming this is because of a shared IP address? Had a friend at work try to sign up the same day and he was denied. Question is, I have been accepted when I signed up at home but will my account get banned if I try to play it at work?
If your friend at work will also be logging in from work you will need to register as multis. If you'd rather not be restricted by the same-faction rule for multi accounts, talk to your friend and work it out so only of you refrains from logging in from your shared connection.