Showed up to airport to get the agreed upon car. Was told by the agent that a credit only card was necessary in order to get the car. The only alternative to use a debit/credit card was to have already booked a return ticket home 24 hours in advance. Why would I even need the car, since I intended to drive it home ? No one who wasn't present could pay with a credit card for me, either. I will not even attempt to book a car with Hertz in the future.