what a worst services I've received from TRACKER

I moved the tracker to an individual from the company in January 2015. They did the tests and they told me that they can't pick up any signal of my tracker and they said a technician will come and see what is the problem. I was contacted in the middle of January and I was told that the technician is coming to see me at work, on the day when the guy was supposed to come they called me and told me that the guy can't come because his car broke down. Beginning of February 2015 I again took my last air time and called them, but up to today I haven't received any call from them. They don't forget to debit my account mxm... what a worst services I've received from TRACKER