Okay the company you’re working for is screwing you. Your fed up, pissed, tired, etc., you quit. They offer you more money or a promotion, both, parking space, other shiny things. DO NOT STAY! Unless you don’t have another job to go to, then accept these offers and stay while you find a better job.
If you’re offered more money, promotion, and other things it just means your employer knows how valuable you and your work are to them but they decided to screw you anyway. Also, MANAGERS DO NOT FORGET ANYONE WHO “HELD A GUN TO THEIR HEAD”. When you quit, you quit completely.