Ifar at the Las Vegas Mccarran Airport counter refused to honor my reservation price . The date and times are correct on the reservation.  We returned the car an hour early.  Ifar the customer service rep accused me of changing the rental time on the reservation and we had to argue for 15 minutes to get it reduced. He also added a $40 charge for additional driver and said he couldn't remove it. They are fraudulently adding fees to our reservation.   This was the worst rental car experience I've ever had. Angry customers waited in line for an hour because each transaction took 20 minutes. Other...