> Never had any problem renting cars online from hertz, unsure what the problem is.

Just a few weeks ago, I showed up at a Hertz location to pick up a car rental I had already paid for. They refused to give me the car saying that they didn't have some kind of required booking number in their system and that I would have to pay a second time to get the car. I showed them the withdrawal from my bank account, and the email receipt that Hertz had sent me saying that I had paid. They had all of my information in their system and the car was ready to go, they just insisted that I needed to pay again because their system did not have some number that they required. I spent 3 hour on hold with their customer support phone number, and they were unable to help. I eventually told them to go f themselves, disputed the charge on my credit card, and rented a car from the booth next to them at the airport. Hertz is a completely incompetent company, and that's before getting into the horror stories of returned rentals that they've reported as stolen, landing people in jail for the crime of renting a car from Hertz and returning it on time. I will never do business with Hertz (or Thrifty, which is also Hertz) again.