I had a security system on my house for a lot of years with ADT. they maintained the system & serviced it every 6mths. on the very day it was due a service it activated itself. the procedure was if that happened I would call ADT & I would get a code to reset it. on this occasion I was told to expect an engineer., which turned up within 5mins. then I started getting bills for an emergency call out . it was £80 above the normal monthly charge. I tried to contest this by ringing their accounts dept in Leeds. my problem & theirs whenever I called the a/c dept was about to close (5pm) I worked as a brickie on a site where we couldn't get a mobile signal. when I did call it was always just before 5pm & was always told by the lady in charge that they were about to close so she couldn't deal with me. then one evening I got a phone call from ADT, the same lady whom had been telling me she couldn't deal with me. she was about to say something until I told her I didn't accept calls about my payments to ADT after 5pm. the debt was forwarded to a collection agency. to contest this I had to appear at a court in Manchester. the case was found in my favour after I explained my story & producing the engineers report . it turned out he was due at my house & was only 300mtrs away when he received the info regards my alarm. also the reason he wrote about the malfunction was I quote. " malfunction due to over tightened electrical wire , leading to breakage in consumer unit " if only that woman would have listened