Tracker very unprofessional and dont care about their customers

Worst tracking company ever my tracking unit stopped working called them technician came following day after the technician came and said everything is fixed with the unit i called them and they still could not track my car i asked them to escalate it they told me their manager will call me back still waiting for the manager to get back to me. then they decided they will just book another technician with out confirming if im available i just recieved a sms that they will be coming and ***** me.