I have also had awful customer service from Magellan.
I am having difficulty installing the drivers for my Exporist 500LE. The online support did not contain any information regarding USB drivers, so I called the 1-800 technical support line. I spoke with a representative today and he informed me I would need to go to the Google website to find the drivers for my GPS unit. I informed him that this was incorrect because I could see the Drivers on the software CD that was included with the GPS unit and when I ran the install wizard, I received the confirmation that the USB driver has been installed. However, when I install the software, the device is still not being recognized and when I look in my "Driver" folder on my C drive. the drivers are not installed. The representative informed me that I would have to call back at a later date and time. When I asked to speak to someone else, he put me on hold and came back after a lengthy wait to inform me his manager was on another call and I would need to call back.
I suggested that I would receive better customer service if I returned my Magellan GPS and went out and bought a Garmin instead. He said he did not understand what I was saying and I would need to call back.