I reserved a car picking up and returning SF airport. However, my flight was changed and I had to change returning to Oakland airport. Charge was changed from original $194.00 to $1229.00. I called Alamo twice, the repersentatives said the charge is Time & Distance, and refused to adjust the rate and refund me. I email to their customer service and was told I will receive a reply in 24 hours but I received nothing.