many don’t even know the laws , I was told at my local immigration office that in order to change from my elite visa to a non o prior to my application for a marriage visa I will need to exit Thailand and apply for non o from a different country. However , looking at the immigration website you can convert to a non o without leaving Thailand but only in the Bangkok immigration centre. Which is cheaper and faster than hanging round Saigon for 14 working days ( so just under three weeks ) and facing the drama at the airport.
it’s far more involved, includes marriage certificates, letters from local obidor , map from home to immigration office , photos of you and your wife outside your home and inside the home , plus more.
exactly what I do. Opened an interest account with GSB and you also get entered in the monthly draw. I average 800 baht per month winnings from this lottery