pathetic service

This unit has not been working correctly since installation. When I called you guys 2 weeks ago the lady says it just needs a reboot. She rebooted it and it still didn’t work, when I am at home it says the car is at the office, when I am at the airport it says the car is at home. I call again last week and spoke to Charles, I told him I want to log a complaint he tells me he has to reboot but then I told him we did this already and he cuts the call on me. This is not acceptable, what happens when the vehicle gets ******??