If you value you money don't rent cars from Hertz car rental

I have rented a car from Hertz car rental. I specifically I told them I am picking up the car in Port Elizabeth but I will drop it in George Airport. Nobody told me this will be an extra cost. After I drop the car in George I got a call that they will charge me an extra 1K for dropping the car there. This was suppose to be explained when I made a booking