Tracker not installed after a month

I took out an insurance and the mandatory was to take out car tracker with Netstar it’s been over 31 days but my tracker hasn’t been installed, no one has bothered to call me and explain anything they just send you a contract and a stupid link to book your tracker installation date that never works to your advantage. Eventually I managed to book a date which was far I had to take leave for that day from work to have installed did Netstar pitch No no one came I called and was promised to be called back that was on the 18th of December still no one called and I’ve sent numerous emails no one bothers to respond. My premiums have now gone up.

Now how can I even trust a tracking company like this ??