Bad Service, Faulty Tracker

The tracker on my car has been faulty since it's been installed. This was part of my insurance package and not something I personally wanted. I get numerous amounts of alerts and calls even if I'm just standing still in traffic, no reckless driving, no excessive breaking yet I receive impact alerts. I have logged calls for a technician to attend CAS-***-Z6W5 CAS-***-L3G2 CAS-***-J6X9 the technician didn't pitch when he was supposed to. No explanation, no courtesy call to reschedule. This is frustrating as I get irritated being called nearly daily for absolutely no reason. I don't have time to respond to sms while driving either. Customer service is extremely bad. I want this tracker out of my car.