Holy heaven! Where are you based? In the wild, wild west? I'm quite shocked here as in any civilized country you need university degree in order to teach. Second, there's no such thing as not paid salary. It is your right you have worked for it, so no one has the right to withhold your salary. Things need to change over there as that's not right.
Ah. It is a common thing for private school owners not to pay salaries. The worse thing you can do is just to leave.
It is really messed up over here.