Is some bank letter required when using the 65k baht/mo method when extending an O-A visa? I will be extending for the first time early next week. I will have bankbook info showing deposits plus copies of transfers from Transferwise website. Is there still some letter needed from the bank? I understand the need for one if using the 800k method but I am not. So what would be the intent of the letter? Would it be only current official proof that the account still exists? I just want to make sure what the bank gives me is what is needed. Last week I was in the bank and overheard a foreigner tell a bank teller that immigration told him the letter they gave him was the wrong one. I don't know any other details about his case. It just left me wanting to make sure I get what I need for my case. Thanks!!