I got caught out one night whilst on the drink in an upstairs bar on Patpong 2. six grand bar bill and all I had was my Visa debit card and a couple grand leftover from the previous club. they don't accept cards for whatever reason (no issue from me, up to them).
I thought the cashier boss going to call in the security boys when I told her I was short. ok no problem you pay by QR. I was three sheets to the wind by then but I managed to pay the bill using the Bangkok Bank app. easy peasy.
paying by QR code, what the problem is? ????