I got a coupon code for anything from the EA store... found the EA help chat (on a different site, no direct link on the EA site that I could find) after about 2-3 hours of searching for it. The guy I talked told me multiple times that even though Crysis 2 Nano Edition was a pre-order and a limited edition that the coupon code that I had WOULD work with it... it didn't.
Be careful, Ea has been know to have bad customer support. The Ea download manager was testament to that fact, one person - ten replies by a machine with out any real solution to the problem.