The pin code is the number you have to scratch off with a penny or something. You can find that pin code at the back of the game card where it says "scratch gently with a penny" then you'll find the code once you scratch it off.
Buy a card
You need to buy a Zynga Game Card then peel off the stiker on the back to get the code.
Go to YoVille and click the "Game Cards" link on the right. When the page loads enter your Zynga Game Card pin code (located on the back of the card) in the box then click next step. NOTE: Your YoCash or YoCoins may not appear in-game immediately, you may need to wait a few minutes.
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when you go on yoville on top where it says send free gifts and play yoville and all that there is an icon for game card on the right, scratch the card to revile the number and type your code in.
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Credit and Debit Cards
Pin numbers are not stored in the magnetic stripe on cards. This would make it too easy for thieves to use a code reader to get your pin. The pin is stored on the banks computer.
It is different on every card, which allows the cards to be used only by the purchaser or gift recipient.
give me the code