New one for me. Finding tripla.ai is used as the booking engine and card processor by some hotels in Japan, "conveniently" offering a way to pre-pay for your hotel room in USD rather than pay in JPY at the hotel. At least one hotel wouldn't let me skip and pay on site or pay in JPY. I didn't understand what was happening so didn't get the precise numbers. (Yes, feeling dumb, but there was no option on that hotel.) Anyone know if they mark up and by how much vs normal Visa exchange rates?