Here is the link: http://www.alienwarearena.com/giveaw...=na_newsletter
If you are able to get it, congrats to you. This giveaway is going to last throughout PAX so hopefully you'll be able to get a few free stuff from it.
EDIT: I forgot to say, you may need to sign up an account (which takes no less than a minute or two) and then you'll be able to redeem it. Not too hard.