I just bought credits with a credit card (not debit card). Don't want the credits probably wont use them but it was the easiest for me - done in seconds. the other 2 options are YOTI app which my phone can't run and SMS to a phone that is able to browse adult content which my old phone can't do. Not worried about AW being hacked for CC details as Tesco, Morrisons, Sainsburys, Just eat, Dominos etc, etc anywhere card is used could be hacked. I think cards nowadays give you a fair bit of cover in case your details are stolen if you report it early enough. Anyone with a joint card with the missus note that AWS appears on the bill. Might be questioned.