How do i get battlefield 3 beta? do i have to register?

i bought the medal of honor limited edition, and apparently i get to enter the battlefield 3 beta 48 hours early. only question is how does EA games know i bought the game? They said they will be sending emails with beta keys to limited edition owners. Do i have to register on EA games or what?How do i get battlefield 3 beta? do i have to register?
If you bought it new, you need to register your copy of MOH on EA.com

They'll email you the beta key to the email you registered with EA.

People who bought MOH will get into the Beta on Sept. 27th

Open Beta starts Sept. 29th

Both end on Oct.10thHow do i get battlefield 3 beta? do i have to register?
Battlefield 3 leaps ahead of its time with the power of Frostbite 2, DICE鈥檚 new cutting-edge game engine. This state-of-the-art technology is the foundation on which Battlefield 3 is built, delivering superior visual quality, a grand sense of scale, massive destruction, dynamic audio and incredibly lifelike character animations.How do i get battlefield 3 beta? do i have to register?
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