Damage of vehicle by unqualified technicians

Ok so my story starts on Thursday 27 Sep 2018. CarTrack send their technicians to my work premises to install a tracking unit on my motorcycle. On arriving I showed them the bike and then they were asking me technical questions like where is the battery, and how to get to it etc. which already made me cautious. After fishing some more I realised they have never done a vehicle like this before but I wasn’t allowed to watch them install so I left them but I went and phoned CarTrack and told them I’m not comfortable with these guys. After about 30min they came and called me and told me the office called them back and they left abruptly. When I left that afternoon I almost dropped the motorcycle on top of me taking it of the main stand because they put a brick behind the wheel. (Was left with a nasty gash on my leg where the stand hit me) I later discovered that they had cracked the one panel (probably trying to pry it off since they had no idea how to remove it) I then contacted the representative that I dealt with initially and she said that she will contact the Pretoria branch that send out the technicians and resolve the issue. Regarding the above issue I never got any response. Tracker did contact me to reschedule an installation for that next Monday (1 Oct) of the tracker and assured me that the technician would be competent. Nobody pitched up on Monday so I contacted the original CarTack representative again and asked her what’s going on and also what is happening with the claim for damage on my motorcycle. She assured me that se will find out what’s going on. CarTrack then phoned me and scheduled yet another installation for Wednesday (3 Oct) Still now response on the damage claim. On Wednesday the technician pitched up at 8 and it took him 3 and a half hours to install. When he had finished I found that the one panel was lose with a clip missing and I picked up a bolt and a nut under the bike. He had no idea where they came out… Today (8 Oct 2018) I’m still waiting for them to get back to me with regards to the damage they caused. (Though I keep on being promised they will call me) The representative says that she phones them almost everyday and they promised her that they would contact me but they haven't even contacted me ones regarding this matter...(I even send them a quote for the cracked panel from BMW) I am technically minded so I saw what they did but what about all the other people who’s vehicles they destroy and they don’t even know about it…