I have set up *all the payment methods*:
My normal virtual bank with FPS and MasterCard, BoC Pay, PayMe, nothing worked in this web shop, just instant transaction failure, or showed a supposed QR that was just colored vertical lines, etc. Finally I discovered a UnionPay credit card I had forgotten I had, and that actually worked!
One birthday gift for the kid and a bunch of popcorn on the way to my door.