Lack of service/no response

On Friday at 17:30, when I came home, my alarm was not working. I immediately contacted ADT in order to resolve this issue, but I was told to contact the contractor (react alarms). I contacted Raymond, who had installed my alarm system and he said that he would come and evaluate the system on Saturday afternoon, after lunch, but did not show up or reply to my messages. On Saturday morning, I messaged him 4 times, enquiring when he will come over, but I received no reply. Today I messaged Mr. Wimpy, of the ADT head office but still received no reply from him, instead Raymond responded saying that he will assist me on Monday. This is completely unacceptable and not the first time that I have received such ********** service from ADT. They are extremely unprofessional and refuse to take responsibility for the service they are supposed to be providing. ADT continues to blame their contractors for their faults. I feel taken advantage of and unsafe. I am desperate for a security service that I can depend on.