"I rented a car from Thrifty Car Rental in Philadelphia PA, I rented the car on-line and was quoted a price due at pick-up. At pickup the price changed up $27.00 There was a customer in line ahead of me who had the same thing happen. After they finished abusing her verbally, and telling her call customer service if your not happy I did not challenge them at the counter. I have rented many cars over the years and most of the people that work at car rental companies are OK but this place had the worst behavior by people that are interacting with customers that I have ever experienced. So I called customer service and was told we are not going to stand by our quote because the quote was just an estimate of charges. It seems that even though they rent cars every day from this location they do not know what the tax, airport, and other fees are so when their quote says due at $**** due at pickup they are really just guessing. I did rent through airportrentals.com but I always do and I am never charged more than quoted. Then to rub a little salt in the wound when I picked up the car the gas range said I had 409 miles on the tank, when I filled it up after returning it I had 480 miles. When I challenged them that the tank was not full when I bought they insisted it was and refused to make any adjustment. They sure would have made an adjustment if I would have left the tank short. "