It's not very different and I used another account earlier. That account I used for daily expenses and for immigration. Just some copies from that bank book for a total of maybe 10 baht/year at Kodak Express. Plus the bank letter of course.
Why do you think a lot of expats have more than one account? I'm using my FDA at immigration and I just need 2 copies from that bank book + my bank letter.It can't get easier than that.
It's because your application was based on 800k in the bank and you must have that amount in your account 12 months from the day you applied for the extension last year.