I picked up a car in Colorado at the FBO. The car only had 3/4 of a tank. They told me to just fill it up to 3/4. However, I was not going to leave the car running while I filled up the tank. THAT IS VERY DANGEROUS!! When I returned the car to the FBO, the manager stated that they will give me a credit for the extra gas that I put in the tank. However, that didn't happen and no one answers the phone at the branch that rented me the car. I still haven't been contacted by anyone at Enterprise. It's very disappointing that they would not give a customer a car with a full tank of gas. Can you please rectify?