I've never seen an entry on my statement. It's factored in. In fact the guy at the bank showed me the math; rate of exchange X USD on each date - always a 100 Baht difference. I would see what the 15 Baht is for?
Bangkok Bank charges a 100 Baht per incoming wire-transfer fee. I get 2 payments on the 3rd of the month from SSA = 200 Baht. Been to the bank asking about it and the answer = everybody pays a 100 Baht incoming wire transfer fee. There is no way around it.