It may mean that someone else used your email address as your own, it should work with the one you already registered with.
BUT you have to go to the email they sent to you on your email and approve the registration first.
Also maybe in that situation you did not do it with in 70 hours or you cant use it
In the imobile pieces situation, are you in check at the tine? If so, the game does not allow you to do so at the time
Or possibly the connection was lost
Are you on Flyordie.com when you registered?