MD not returning calls, false advertisibng

ADT sold me an Alarm system and the sales person assured me that I will be getting Pet Friendly sensors, when the technician installed the alarm system they did not install the correct sensors. I was told that they were out of stock. When I contacted ADT to find out when the sensors would be replaced I was told that it was told that Pet Friendly sensors were not part of the deal. I have been trying now for 2 years to get ADT to rectify the problem. I have left numerous messages for the MD, Theunis Kotze, who for some reason is too good to return the public's calls. I have also tried to get Stephen Botha, the Regional Armed response manager to sort my problem out. He assured me that he would get the correct person to contact me back. I did get a call from the sales team leader who tried to convince me that the sensors were not part of the deal. We were not able to use the alarm system and have suffered a break-in. I was advised by 2 ADT employees not to tell the insurers that the alarm wasn't activated. I feel that it is not good having a security company that is dishonest and delivers poor service. The insurance repudiated the claim due to the faulty alarm.