That's what I was thinking but then who's to say with the bkk tm30 changes still underway that I won't need to document every address with a tm30 from now until July 1st when I apply for a new extension. I'm thinking better safe than sorry but maybe that's not necessary.
I am still in Saigon but will enter at the BKK airport on Monday. I am thinking I will just have them stamp the new passport because I don't want to confuse things and also show the old passport .... passport has my METV and my Thai extension pages. I'm not sure what the correct procedure is.
I did in Feb. 2019 travel as a transfer through the BKK airport on the way to the US from Vietnam and had to get back quickly for a heart operation so just showed and Bkk stamped the new passport at that time.
okay got it thanks again. So it sounds like the answer is yes I can travel ... I purchase a single re- entry stamp at BKK before I leave and because my 30-day extension goes until August 9, I can exit and just we enter on that 30 day extension without a problem before July 31st.
I tried to send an image of my 30-day extension... But it looks like it says extension of stay permitted up to 8 August 2018... Signed immigration officer date 26th June 2018
you have clarified everything and thanks but the only thing I'm not sure about I realized this morning is... Am I prevented from traveling out of the country from now until July 31st when I receive my 90 day non o Visa at Bkk C-wat C-1...I would like to fly to Manila in the next week or two but I'm not sure if I show up at Bkk airport and try to buy a single or multi reentry permit whether they will give me the permit and where they will put it since I don't yet have the 90-day stamp in my passport.