It is with dismay that I must take my business elsewhere. I made a recent rental in Erie, Pennsylvania only to arrive on an American Airline flight to find no car. I had made the reservation two months earlier. When I called the "Customer Support" number I was told, "Sorry there is nothing we can do for you." When I asked to speak to a supervisor I received the same response. I rent over 40 days a year with National and you could care less that you stranded me and my wife at the airport. I walked to the Avis counter and found myself a car, and while I was there signed up for their preferred program, and will take all of my business to them. It is sad that your "customer service" is not really service at all. It would have been easy for you to arrange a car for me had you cared about the situation you placed me and my wife in. Your lack of caring, your lake of response to multiple phone calls, and your overall lack of customer service has cost you my business. I am only one person, but I suspect there are many more out there that you have shown the same lack of concern towards. In a service industry, customer service should be the focus of what you do; rather you choose to ignore customers who you have put in bad situations. It is for this reason I happily take my business elsewhere.