Unacceptable Service

I am completely dumbfounded by ADT's service. I signed up and struggled to get the contract to go ahead, 4 days after signing the contract I hadn't even heard from the staff to say they had received my application. we then struggled with trying to get the radio to work, have been with ADT one month short of a year and have not yet received an invoice (breach of contract). When they call they can never tell me which zone has gone off and their response time even to call is not acceptable. A few weeks ago an ADT man rang our front door bell at gone midnight to say our panic alarm had gone off, I called to find out what was going on and have still not received an answer.<br> <br> I want to cancel and get out of this service with immediate effect and they want to charge me a cancellation fee, when they have breached the contract from the beginning!