Some of those Diebold machines are awful, many more than a decade old, and by the time you realize you've got an old unreliable one running slow as molasse - it's hit and miss if you'll get your card back within your lifetime. Bangkok bank are especially bad for keeping old ones in service, that one looks rather new though. Won't be hard for the bank to find the last user, a few faxes here and there, and telegram to Diebold in the states for some assistance they'll be on it within a decade. Might of been a skimmer on it, or suspected skimmer, in which case maybe he or she just panicked