gift card cracking

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Hello all, I dont know everything there is to know about carding but I know quite a bit. I was just curious to know why some giftcard sites are so hard to card even with having a NON VBV bin? What can i do to increase my chances of success?

Hi all. Iam new around here. Iam really enjoying the wealth of knowledge thats here on this site. FINALLY! Carders, who actually know something. About something! Anyway. I was wondering about how to see patterns in gift cards. I know the pin is random but, i mean the card number. I tried...