> Finally, when I pay via Paypal using my Amex, I never have to re-auth to Amex. It just flows through. So it sounds like that's something you've chosen to set

> Finally, when I pay via Paypal using my Amex, I never have to re-auth to Amex. It just flows through. So it sounds like that's something you've chosen to set up, not something inherent to the process. To be fair to the parties involved, they might well blame "EU strong customer authentication rules"