yes I know that there’s no stipulation about proof of the source of funds (he even showed me the document outlining requirements which of course doesn’t mention anything about the funds having to come from a pension). He was adamant though that he wanted to see proof that the transfers were coming from a pension.
Had the same experience yesterday at Nonthaburi immigration (although the officer was really nice). Was trying to move from banked method year one to monthly income method year 2 on retirement extension. I had 12 monthly 70 k payments and had met the 800k banked requirements. Officer said it would be much easier to stay with banked method and they demanded proof of where the 70k a month was coming from.