Advantage Rent A Car

I rented a car nearly two months in advance. My flight was two hours late and when I arrived at Advantage, I was told my rental had been canceled but that they would offer me another car at $30 more per day. This was a classic bait and switch. I have rented cars from many other companies that when I called to let them know I was late, said I didn't need to call since reputable car companies give renters a long grace period. Obviously Advantage is not reputable nor reliable. When I asked to speak with a supervisor the gal behind the counter threatened to call security on me! Then went and hid in the office.