These people are liars !! They will do it to your face as if it is normal practice.
But no worse than any other in this part of the world.
Yes I have worked for them.
Forget about bonuses, "coming pay rises", " better rosters coming " etc etc. Work on worst case scenario pay and condition wise and you won't be as disappointed.
The pollution in this part of the world has to be seen to be believed, it has the abilty to make you seriously ill or even kill you.( and your loved ones )
good luck !