@Mike ********
yes, Bangkok Bank.
There is a default document, I think you pay 100 baht.
Be aware though, I held 1,000,000 but Bangkok bank put a hold on 800,00 for 4 months when I first got the 3 month Non-O,
The letter shows 200,000 but a caveat of 800,000 is on hold.
No issues with the account, 100% functionality, app shows 200,000, book shows 1,000,000.
Hold is lifted exactly 4 months later.
Pathum Thani immigration accepted the letter from BBL, but stressed to me to change banks or hold 1,600,000 in, they don't like this on hold comment.