HORRIBLE AND POOR SERVICE ADT FIDELITY

Poor poor pathetic service since day 1, alarm is supposed to have a backup battery for power outages, been telling them there is no such thing, my service was supposed to commence end of april only but commenced the beginning of april, currently my alarm is not working or making communication with ADT, I advised them and all they say is I need to wait for a technician who can assist by end of this week only. so what happens this whole week? I just want to cancel my service cos this is pathetic REF JAFTA00312