I was disgusted when that decision was made. It really stuffed many retirees around, forcing them to return to Australia to get their paperwork fixed. Really messed people about. So much for service from ones government.
0 has remain in your bank 6 months before and after. With a 1 year OA the money will have to stay there. The rules were changed either during or just after the pandemic.
I read many questions on this site and it amazes me the amount of people that try to rort the system. You are a guest in Thailand; remember a guest. Please do the right thing and follow the laws of the country. If one can't why go to Thailand.