Believe me or not, /vp/, NoA has decided -- weeks ago -- that they will only give demo codes to people who have played over five hundred (500) hours of either Pokemon X or Y. For some reason, combined time isn't allowed and must be done in a single game.
Before you say, "how do they know how long we played?" They know through your Global Link account. What makes it worse is if you didn't register your game card.