Chargebacks are HUGE in this field and all the mitigations you might find as part of your big payment processor don't apply because eg. Stripe don't allow any of this kind of thing on their platform.
I read on HN a few days ago that they use stripe for non sex related models, and ccbill for adult related models. Ccbill is the porn industry’s payment processor but it costs much more.
Ah, wasn't aware. One of my contract positions right now is in a sex worker field and a lot of the infrastructure and billing needs to be done themselves.