The 90 days that cross after the 'Enter Before' date is valid and won't be consider expire.. Just double sure if anyone get into issue before doing this.
Update that I got my Non O multiple entry in Singapore. Is actually quite hassleless but need to submit all require documents online first.
I'm am still abit confuse, so every 90 day I need to go in and out of Thailand, can I stay beyond 90 days by doing reporting at immigration department?
I am going to do a extension to 1 year multi entry inside Thailand but the local agent said I could apply a 3 months from my own country Embassy as is cheaper. Any suggestions?