Origin account data of game key

Hey!

I tried to install Battlefield Bad company 2 on my new computer, but since I didn't got a cd drive or the game cd itself I wanted to download it from my origin account. It seems to be the case that I already registered my game key on some account, but I fail to remember which account it was.
Is there a possibility to get at least the registered email address of my game key so I can login and download the game?

I got the key in front of me of course.

Thank you!