Car rental

CarRentals.com flipped the location for return that I had entered on their website, when I went to pickup the car there was an additional $89 charge for a one way rental, I ended up renting a car for less than the extra charge from another vendor. After dealing with the nearly non-existent customer service I was never granted a refund for the car that I did not rent. I will never do business with them again, what a rip off.