get (one's) due(s)

1. To receive the appropriate payment for services or work one has completed. After intense negotiations, rural farmers will finally be getting their dues from the local government. You'd better get your due for all the overtime you put in on that project. Don't worry, you'll get your dues. They'll mail your last paycheck to you.

2. To give someone that which they deserve, which can be a reward or retribution, depending on the situation. Don't worry about those stool pigeons, we'll make sure they get their due. After all her hard work, I really hope Mary finally gets her dues. Good luck getting Al to tell you anything. He knows that snitches always get their dues from the mob.