Very shocking add on service from Cartrack

I ordered a dual vision dash cam to protect me & my movable asset from the awful drivers we have on 24 January 2025. I received notification that the dash cam would be installed on 14 February and received an sms at 1204 on Friday 14 February to confirm the install. I again received an sms at 1401 on 14 February to advise that the technician would be arriving at 1440. At 1525, I called Cartrack to find out what was going on and am now being passed from pillar to post. This does not give me much faith in Cartrack as a company with whom I have had a tracking device for years. I have now been asked to email them. All I want to know is why the manager of the branch has not called me to explain the delay or the situation. The technician who was supposed to have arrived at 1440 says he phoned me and that my number went to voicemail. I have a record of all my calls and none were from Cartrack.