PAID IN FULL YET NO SERVICE DELIVERY

I am extremely dissatisfied with the lack of service, lack of delivery, and lack of professionalism from ADT. Since the start of my contract I have had nothing but lack of service from ADT. The call center is extremely unhelpful and unfriendly. I fought to get a refund out of ADT for 6 weeks, until finally after numerous calls they refunded me after having taken too much money off my account. I am now in a predicament where I have paid for an upgrade to my alarm, 2 weeks ago, and have not received the service. I had 3 appointments with ADT last week and each and every one was a \no show". No phone call / apology was made by ADT. I have had to follow-up each and every time. The Sales Consultants do not even respond to my concerns. I would like to cancel my contract and go with Monitor Net as I cannot rely on ADT"