What do i do with these accounts i need tips ?

[bilele2lamaria]

Hello everyone i need some help i purchased some accounts on azrael.catshop.io and once i got the accounts, one account required the last digits of a card in order to get in i tried contacting the person who sells the accounts but he said himself he doesn't use venmo so he recommended a mail validator is there a program someone recommends . Or solution to get the accounts working to use