Chaeng Wattana officials told me to request a Credit Advice from your bank's main office in Bangkok They want the last 12 months of transfers. Don't know the cost of the CA either. Best of luck.
Last guidance from CW IO was that you could request a Credite Advice for the last 12 months from your SCB bank in the main Bangkok office. Went with an agent instead.
Local dentist wouldn't accept me as a client because I was from the US even though I have been here since March 2019. Seriously watching too much chinese news and cnn.