********** service! still not sorted

I had a Matrix device installed in my car, since then the device keeps on draining my battery. I called Matrix after holding on for 15 minutes someone finally picks up the call, Carmilla, explained the situation to her, informed her of the urgency that I need someone to come through urgently and resolve this, as my car is used for business, she informed me that someone will call me it was close to 4pm so no one would call me the same day it will be the next day and then arrangements can be made, even asked for her manager informed me that her manager will call me back before day end and still nothing. I then reached out on FB -left inbox messages and nothing. Also chatted to another consultant who assured me that it will happen today and still nothing, no one has made contact with me. This is not the kind of service that is expected. I need someone to attend to me urgently.