Yes, that is why I found it strange they wanted me to start sending my original T.M 6 to them. I did not like the idea for this exact reason. I felt they would eventually keep it or lose it, and here I am. Thanks for the advice.
I have already had the 1 year extension to my visa. So it will be 2 years expired in September. Are you referring to extending it with the 800,000 baht in the bank, or another method? Thank you.