Here are some sites that you can buy crypto vouchers using CC. Some are 2d sites, your job is to find which ones are!
seagm: seagm(dot)com
Offgamers: offgamers(Dot)com
Eneba: eneba(Dot)com
Baxity: baxity(Dot)com
Driffle: driffle(Dot)com
K4G: k4g(Dot)com
Giftsy: giftsy(Dot)com
Gamecardsdirect...