I Entered The Right Redemption Code On The Wrong Redemption Website :(

Hello,

I just purchased The Sims 3 Island Paradise Expansion Pack today and I just installed it, as always.. When I went to the redemption website as always (www.thesims3.com/incentive/generalredeem) but I did not read the redemption website because I thought they were all the same, so I entered the redemption code.. And I got the same gift/purchase and I was confused.. So I clicked the back button after that, I read The Island Paradise Redemption Code sheet and I realized that the redemption website was suppose to be www.thesims3.com/incentive/islandredemption.. I entered the redemption code again but it said that the code was already used.. I panicked because I don't know what to do.. Please Reply.

Trisha.