Cancellation - Still not been actioned

Good day , after logging a complaint on the 4th of May , I was contacted on the 5th of May and they advise that they will send me an email confirming cancellation and date ? Still nothing. The social media officer was more concerned about saying that payment is due in arrears so it will be a full calendar month notice which I again made reference to the term and conditions which she agreed too . Anyway I see why so many people complain about ADT , your billing/accounts operates like it doesn't exist for anything else but to process payment . Considering your charge for services in arrear , your should refund me for the lack of services your provide. I haven’t seen a ADT vehicle or patrol in months and your delay with cancellation so that your can continue to bill clients . FYI : This is my third Hello Peter post