How can I see what add ons I have on a game? I have purchased an add on that I dont believe I have previously purchased. I admittedly bought it from a used book store, but it came with a code. I went to put the code on my account and it stated that it was already used. I dont believe I have the game already, and since I bought it, even though it is used, I should still be permitted to use the code. How can I find out why it wont let me link the code to my account?
The game I am referencing is Sims 3 Island Paradise. I confirmed I typed the code in correctly. As I mentioned, I dont believe I have already redeemed it.
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