I opened account by purchasing codo there… bank need business , if you give them business , everything become more easy. I think last 2-4 weeks is difficult for account opening because Thai baht was so strong. They hardly get profit in oversea rate spread.
Bank staff told me in dinner - foreigners can’t open because they put little money there
With the stamp of your passport, go to AIS shop buy a prepay 90 days sim
Buy an 1 yr accident insurance in K or Bangkok bank (~3000 bath) and said you need to open an account, or else. with your hotel address and phone number for mobile banking
Regulation - if you buy a condo, money need to transfer from overseas in foreign currency and exchange in Thai by bank, not wise and not Western union
(Not sure if this need for applying any visa )
Bring foreign currency by hand and exchange in Super Rich = best shop* exchange rate
Other way- use credit card
The ultimate best way- find an Thai gov accredited stock broker who accept your hometown currency , move the money there , then you get no spread of exchange rate ..(spread = same as the rate you check on internet) , before IB can do , now Thai bath is out