Hi I am looking for a little bit of advice. I went to Thailand on a SETV Jan '17 and extended for 30 in Krabi. Then went to KL for another SETV in March which I did not extend and left Thailand end May. Since then I have been traveling SEA. I need to be back in Thailand for a dive course mid October at the latest ideally stay until May '18. I'd like to head back there start of August. Some websites talk about only being able to gain 3 SETV per year others contradict this. Any advice appreciated.