Pathetic service

I install the alarm system with the company in June and it's not even 6 months and I'm having issues..I called the call center two weeks ago and the agent gave me a number for a technician I could call..I called the technician and he responded as well as asked to send him a text of my details, I did that and he forwarded that to his head office. Head office contacted me and Amanda set an appointment for a technician to come through last week Saturday. On Saturday morning she informs me that the technician was involved in an accident and won't make it,she never called to reschedule.On Tuesday last week I called her and she informed me ,SHE WAS JUST ABOUT TO call me.We made an appointment on that day for Thursday and guess what,technician never called and no message to inform me what happened. Today I called her and asked to speak to her manager and she cut the call...I can't believe this, it's frustrating and my safety is on the line, they have noo after sales care and it's disgusting......