I actually entered my own company email address and it took. I also don't work for accenture either
I also ordered it and gave a credit card and it never charged the card, I got it on my bill that came in the mail yesterday. I think the normal process would be to charge a credit card if it's new service, and that the upgrade route still asks for it, but charges your account instead.
This is why I waited till now to post about this.