I had a non immigrant O E visa,passport scan was down when I came through so had to show the visa email from the consulate in Aus and got the same 90 day stamp
Three weeks ago went to immigration HuaHin with Non immigrant O visa with all required docs for 12 month extension marriage visa. 1 hr later walked out with fully stamped passport for a 12 month retirement visa.was tossing up which one to go for anyway so went with it.
About bank account I opened mine February on a tourist visa Bangkok Bank but had to take out a 7,000 baht a year accident insurance policy. With Non O Visa you should have no problems,Bangkok Bank beside Market Village Route 4 HuaHin
Got Mine Bangkok Bank at Market Village HuaHin,just had to take out a 7,000 baht accident insurance policy. I had tryed many banks in Bangkok with no success