#1 - Nov. 2, 2010, 9:26 a.m.
Sounds like you may have used a different email - or perhaps even had a typo in your first one.
It shouldn't let you create another if that email is already in use.
I'd recommend giving Billing a call to see if they can help sort this out for you.
And no, your new Battle.net isn't going to have accounts that were merged elsewhere.