First and only time I flew to BKK with KLM it took 36 Hours and included an excursion via Chengdu/ China, due to issues with the aircraft on the Manchester to Amsterdam leg.. My Bag was missing on arrival at Swampy as well, got it the following day.
Try K Bank, take your wife with you. Blue Housebook if she owns house, or rental agreement, your passport her ID and some cash as deposit. I did this with my GF , now wife, on a 30 day tourist visa. Just keep trying different Banks if you dont succeed first time around. Good Luck.
