Tracker Connect - terrible service

You guys attempted to install a tracking device in my car. This resulted in you blowing the fuse box. It is now 4 days later. I was promised that you will be back TODAY to replace the part. I am still waiting for your QA or technical assurance people to call me back and give me an update. Why must I keep calling? My car is dead. I cannot get to work, I cannot get to the shops and I will not be able to get to a hospital or doctor should an emergency arise. I am in the right might to cancel my services with you people because of this. Note: that if any other issues on the vehicle arise because of this matter, Tracker will be sent the bill and this matter be taken to much higher authorities. The technician who tried to fit the unit is not responding to my calls, and the QA who has made these promises to repair the issue is MIA. If this problem is not resolved today I will be forced to escalate the matter much further than your escalation department.