Bad service

I purchased a vehicle in March 2022. I'm required to install a tracking device into this vehicle. I phoned Netstar, and they made a booking to come and install. When the technician was here, he said it would be easier to install a wireless system, and said he would come back later. I never heard from them again. Then a couple of weeks ago, I phoned Netsta to find out what is happening. They were very apologetic about the holdup and said it would be sorted out. Here I am, 4 weeks later, and still no tracking system installed.