@Dany *******
oh dude, you are so wrong. There are dozens of folks who have already claimed they got interviewed in Thai to figure out if someone has really attended the classes or not. Of course they won't expect you to speak fluently after a 6 months course but if you have been on the ED visa for for over a year and you can just say Teerak and sawasdee krab then they will surely realize that you got the ed visa just to live there long term. The embassies have gotten much more strict lately, while you could get DTV with a single appointment, now they go into details. If they figure out you tend to abuse the system, they'll deny you