Im currently on METV, have left and re entered 7 times.in the last 7 months with no problems. Each time you enter Thailand you will get 60(+30) during the validity of the visa.
Yes I did give the IO my printed out copy of METV which she looked at so I assumed she stamped me in on it. But I didn't check stamp at the time which is my fault. Won't make that mistake again.
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