I received an invoice for renewal of a contract effective 3/1/10. I wrote "TERMINATE 2/22/10" on the invoice and returned it to ADT on 2/23/10. The contract was not renewed by me because, in response to a malfunction in the system, the ADT serviceman made a brief inspection and reported that "We can't repair the system because it is too old." No change had been made in the system from the time ADT took over the contract many years earlier. ADT continued billing me and I continued paying their invoices for 10... read full review »