while searching for my issue that I can no longer find where to redeem codes anymore in the game, I found this on the pokemon tcg online forums
"The code redemption feature has been disabled in the iPad client at the requirement of Apple. iPad users who wish to redeem codes into their account...
the vendor that stocks the Pokemon cards at my Target came in today and stocked the Charizard sets. so yeah, I'm sure a few stores are likely to be sold out by Saturday.