What are the REAL laws concerning the problem mentioned above?
homesick rae, one thing is what's written; a different thing is what is practiced. It's in Qatar and elsewhere.
If one is here in the region to complement personal incomes and is in a position to quit at will, he / she(?) may wish to spend some money and get some back by challenging guys like AAB through a reputed local law firm. You would probably have to say "bye" to the company and go elsewhere unless you were a National.
Since most of us are in this region to earn a living, things go on unchecked.