I also got a key for myself and my boyfriend this morning.
But I have a problem now. I received the e-mail, put in my code, and registered the service. Not 10 minutes later when I tried to log on to the game, it said that there was so service registered. So I went to my SE Account Management and sure enough, there isn't anything registered now after I clearly saw that I did. I even tried to put in my key again, but of course, it says it's already registered.
I think I remember reading that someone else had a similar problem. Any advice? I don't know what to do because if I try the beta key request again, it says I already have one (duh) and just gives me a Resend button.