Insurance on three levels.....cheapest 2600b fixes only the other vehicle....second class fixes both vehicles if necessary...6000b and first class covers almost anything 8-
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.