I recently purchased a MBA(2013) with an educational discount and also received the $100 Mac Appstore gift card. Before the computer shipped I cancelled the order(and ordered a refurbished rMBP) and while the computer showed up as cancelled, the giftcard just showed up in the mail a few days later. Apple said they would deactivate the card, but I haven't received any information as of yet to show that they refunded the entire order to my credit card. I tried the card in itunes assuming it had been cancelled and wouldn't work and it applied $100 to my account anyways. Are there any Apple billing experts out there that can explain this to me? Will my credit card still be charged for the $100 giftcard? Is there a way to remove that credit from my account and have apple actually deactivate the card instead of just say they will?