@Tony *********
mine was for extension of retirement visa non-o-a which I secured onlime using monthly income. I did not need to show them monthly deposit. At that time immigration said if I deposit 800k in bank I can change to non-o and is more easy and not so much busy paperwork with proof of income and medical insurance would not be required. I, incidentally am going to Nonthaburi office today if I am approved to apply for retirement visa non-o. I know many offices can be a little different and the rules always changing. Copies, copies, copies!!!