I have a lot of stolen itune cards

Hi guys, so I have bought a lot of itune cards for an event, around $2000 dollars worth of itune cards. I bought them with my credit card at a 7-11, when I bought all of them an put them in my bag, but awhile later it was stolen. I still have all the receipts for the itune cards and also I have taken pictures of the scratch codes on the back of the itune cards in case of any mixed up or problems. So the real question is, is it possible to get them back or whats left of them? They are probably redeemed already, but I have my credit card statement showing I bought the the amount of gift cards and also have the receipt and scratch code on the back of the cards.