Real club penguin codes that really works for card jitsu?

If you buy a pack of Card-Jitsu cards (from the Disney Store, clubpenguin.com, the US Toys R Us stores etc.), one card in every pack has a code on it, which you can enter on the Club Penguin website. All of the cards that you got in that pack will appear on your account. For example, if in the pack you got 2 fire, 1 water and 1 snow card, when you enter the code on the website you will get 2 fire, 1 water and 1 snow card on your account.