Had to go buy an Apple accessory at the IAPM Apple store in Shanghai today. Normally I'd never do this but there were exigent circumstances, let's just say.
Tried 3 times, but they could not accept Apple Pay, which was backed up by an Apple Credit Card, on an iPhone. Had to pay with Wechat.
Serious decoupling going on.
I will say though that Apple Pay was accepted at a dive bar called the Shed in Shanghai, so this is on the Apple store. Shame on you, Apple.