I have serious issues with my 2013 LTZRS and want to contact the Chevrolet Regional office regarding the problems. How do I get a good telephone number? I am not a fan of computer registrations, forums, etc. and prefer talking on the phone or a written letter unfortunately I have to go with todays methods of communication. Can anyone help me? The list of recurring problems is long but I will detail them when I have a couple of hours to do so for those interested in why not to purchase this vehicle.