No feedback received

I made a call last week Wednesday, 08/04/2015 to do a self test and I have not yet received a response. This is the 2nd time that this is happening as I did a self test a few months back and did not receive feedback on that test up to now. If my vehicle is hijacked or ******, will Tracker take responsibility for not doing a test on my unit when they do not give feedback if the unit is working? Should an incident occur, I will take this legal as you are not providing the service that I am paying for. I am glad that all call centre calls are recorded because I will then have proof that a test was done and it was Tracker who did not get back to me.