I didn't have my passport with me, but they did let me finish setting up online banking with license and photo of my passport. But later when I went back after shopping (power was out) would not let me change money without my passport 🤷♂️
Went through something similar this week with BBL, new phone and number. They did tell me that now the only thing that absolutely must be done at ones OG branch is replacing a lost bankbook. Your mileage may vary 555
For CM IO= they have their obscure med ext form at the info desk, take one, make copies. CM was meticulous that the form was filled out perfectly, my Dr was confused by the form. IO feedback was = "yes, most drs are confused by it" 🤷🏼♂️.
That form and of course all other medical certificates need to be stamped by the hospital. Med ext starts from the date the Dr filled out the CM IO form, NOT the date you apply.
I walked in/walked out all 3xs, this was within the last year.
In country medical extension, like many things, might depend largely on the IO one is at. Just got my 3rd 90 day ext at CNX. Walked in and out 😂. CM does have this ridiculously old form for the Dr to fill out. That plus medical report (done at same time as IO form) has really been all they cared about. Plus I have every C19 extension, haven't left Thailand in 3 years plus. Dr Chanakarn in CM is one of the world's best for arthroscopic surgeries, look him up! Understand your entry concerns, if you can, do get a 60 day tourist, extend 30, then try for medical in country.