None of the cards are stolen they were all WILLINGLY sent to me by another person in exchange for another service.
Could always be that person sent you carded cards, and unless you actually claim them it will be hard to tell if they are even still valid. You should request proof of purchase from that person then.
One of many things that would be required would be them wearing a legible garment they were told to wear for ID in a clip from store CCTV showing they paid with cash and nobody's hands went near the customer & cashier card terminals.
I can show proof of all the codes being sent to me by another person WILLINGLY none of the cards are carded!! I can also show proof I just used 3 of the cards for $60 AGC to buy GTA 5 for personal use and there was no problem at all.