Update from Phuket airport. Just arrived tonight from Vietnam and they cracking down hard on both non visa and visa holders. I been on my DTV for over a year and i needed to show 20k cash, pictures from my softpower training (muaythai) and they even asked me to call the gym owner to confirm i was still training there. Lucky the owner picked up the call. Was about 20 more people in same room as me and atleast 10 got denied entry and deported. From start to finish was around 2 hours to get my stamp. Be ready with your documents and proof.