Tried to do the same in a tourist city (not a tier 1 city), beginning of May, didn't work. I wanted a full SIM, not a data only SIM though, which one did you get?
> No it doesn't. If I print out my payment QR code, you can scan it and pay me even if my phone is off. When I buy vegetables at the market, the vendors have their Alipay and WeChat QR codes displayed on stickers.
So the vendor (receiver) doesn't need connectivity, but you (sender) do, correct? That's the polar opposite of POS.