It seems you think 800k is a lot of money. Fyi, I've been with Bangkok Bank many many years (and other banks as well) and I've never had any problems. I get more in interest on my Fixed Deposit Account here compared to back home. Stop whining about stuff you don't know anything about.
I've been banking with Bangkok Bank and KBank for many years without any problem what so ever. I'm been with dtac for many years,and no hassle.I'm doing transactions online every month,and like I said,no problems.