Thats what was happening to me all +44 numbers, It was Thai's doing online credit scams, I answered one I didn't speak Thai to them, thats it they have stopped.
Some guys do fall for it, I used to know a ladyboy who was a stunner she used to do these glamour shows and she had a farang boyfriend and for 3 months he didn't know, when he found out he topped himself, sad story but true
It was common knowledge years ago monitoring the so called Golden Triangle they my have even had a office in CM, I think you will find a few American law enforcement agencies operating in Thailand covering south east Asia, I saw a video of them chasing pedophiles and shipping them back to America
You're right there, it reminds me one night sitting outside a pub in Phuket Town and 3 of them on the next table vaping away clouds of smoke, we had to move and I smoke but my wife doesn't