Bad service Cartrack

Bought a new vehicle & as per insurance recommendation, need a tracker. Called car track, happy to sign you up, but in delivering services - poor. My scheduled date was for the Monday @ 8am - no show. later received a confirmation that the tech will be on site @ 13h40 - again no show. I phoned in to find out what happened - no excuse given, I was told they will reschedule for 7am the next morning - surprise surprise no show or apology. I phoned again & was told they will do it the Wednesday @ 11am - no show & later received a message that the tech is going to be at me @ 3pm - no surprise. when i phoned to find out what is happening - they just drop calls. phone the branch manager in KZN - she promised that she will look into it & get the guys to phone me - no calls since then