I used the sku# to preorder greninja at tru. Manager said well it works, but it didn't ask for an email or anything so they took my info and said they'd set a card aside for it. He goes worse case scenario they'll get an extra, which he's not worried about.
ooooh, I was referring to the post about needing the card when you pick preorders up. I was able to pick up ORAS without it, but I had the receipt. When I preordered Lucario at TRU they had about 40 cards, but on the big day the store only got 4. Sorry for the confusion