I keep trying to use my Southwest More Rewards for a car rental, but the system won't let me book a rental for fewer than 66000 points. I click on the link for a car rental with any companies, and it tells me it needs to check availability, then it tells me the car is not available. Unless of course, I choose a car that is roughly 66000 points or more. All of those cars are available. No cars valued at fewer than 66000 points are available. Wierd. Is it just me?