Pretty sure johns pay with literal cash, not any digital variant.
> I required deposits of 20% for long appointments (6+ hours), because I had a lot of time booked up that would be a painful loss if they cancelled. Deposits are hard to do because everybody wants anonymity and payment processers are cruel; I typically accepted amazon gift cards or crypto.
https://en.wikipedia.org/wiki/Eliot_Spitzer_prostitution_sca...