Bad Service

On 30 October 2020 I purchased a new vehicle that was fitted with a Tracker device. After taking delivery of the vehicle and having activated the tracking device I still received numerous calls from the call centre trying to sell me a tracker device. (I was on their system by then). After installing the app on my phone, I realized that the location of my vehicle is way out as my vehicle was in my garage at home but the app stated it was at a different address about 3km from where I was. After this and investigating further, it came to my attention that the tracking device is not working as from 4 November 2929. On Thursday, 12 November I called the Tracker call centre and they said they will send a technician to repair the device. They stated that it will take up to 72 working hours but will most likely been done by Saturday, 14 November at the latest. Nothing has happened up to now..... Now my question is: My tracking device that I am paying for has not been active since 4 November 2020. What if my vehicle was ****** in that time? My insurance would not pay the claim as I confirmed that I have an active tracking device fitted.