When you arrive , go to the kasikorn bank exchange .. tell them you want to use TAG THAI .. proceed to exchange your currency to local Thai baht . They gain by getting travelers to use their exchange services .
There’s an easier way to have a local Thai QR code that foreigners and travelers can use .. it was launched by Kasikorn bank and the government.. it’s called
‘Tag Thai ‘ you can download the app and fill it up .. one catch : you need to deposit money to kasikorn bank using your currency when you exchange money at their counters