no alarm - horrible systems and installations

I have had the alarm system for a few months now but my problem is my keypad keeps giving me problems its been now over two months that I cannot arm or disarm my keypad and Fidelity ADT has on numerous occasions advised that they would come out / send a technician out but this has not happened I called and the person I spoke to said the call out was canceled I am displeased with the customer service as I now have to pay again this month but the product and service I pay for is not performing its due purpose I feel like cancelling and moving to another company