I’m in Bangkok, went to BangkokBank with US Passport in hand, to set up account using Non-O stamp, TM30 + lease. The lady then asked me to get a Letter from US Embassy Certifying the that my Passport was really mine. No clue why. I guess I could have also brought my California drivers license and my Canadian passport as proof of my ID. What’s my move? Bother with a bureaucratic embassy OR learn my lesson and bring the supplemental IDs to the next branch I attempt to setup an account (do Thais understand the principle of dual citizenship or will using the Canadian passport as ID confirmation confuse them?)