Hehe I feel your excitement. But don't worry, it seems there are so many emails in need of sending, that the pipeline can't handle the load all at once. It's like people assembled outside a Colosseum. Only so many can enter at any given time. Be patient, the queue moves steadily forward :~)
There is an insanely large amount of emails that have to go out, and it takes quite a bit of time for them to process. There are batches going out and if you haven't received an e-mail yet, just be patient.
I've got to wait till next week to play. I would'a pre-ordered, and was here reading the forums nearly everyday, right from the very pre-release moment I had learned of the game. But a shortfall of income, along with some unexpected emergency expenditures, prevented me from buying until a few months post release. Is all good. I'll happily await my turn, happily cuz waiting our turns helps ensure we don't get stuck at the door for all trying to get in at once ;~p