NOT STOPPING A STOP ORDER AND INSISTING ON PAYMENT

I STOPPED MY ACCOUNT WITH ADT AFTER MY 2YEAR CONTRACT. THEY KEPT ON DEDUCTING THE MONEY FROM MY ACCONT. I THEN PHONED THEM AND THEY CONFIRMED RECEPTION OF MY CANCELLATION. I THEN WENT TO THE BANK AND MANUALLY STOP THE ORDER AND REVERSED A PAYMENT ( THE PAYMENT WAS THE SECOND ONE AFTER THE PHONE CALL CONFIRMATION. I KEPT ON GETTING MESSAGES AND EVERY TIME THEY RECEIVED AN ALARM FROM MY HOUSE I SPOKE TO THEM AND SAID THAT MY ACCOUNT WAS SUSPENDED AND I AM NO LONGER A CLIENT. I THEN CONNECTED TO A NEW COMPANY AFTER SOME MONTHS AND THEY REMOVED THE ADT ALARM COMUNICATION RADIO ETC. THEN THE BEST PART......THEY CALLED AND SAID THEY RECEIVED A ALARM. THAT HAPPENED AFTER THEY DID SEND MESSAGES TELLING ME I NEED TO PHONE THEM TO TEST MY ALARM. I RECEIVED MAILS NOW TELLING ME TO PAY THE OUTSTANDING BALANCE OF R1786.88 (R446.72pm) I asked for all the proof on voice recording as my history was lost due to failure of a smart phone. Now I only received the statement and no communication......I WILL NEVER RECOMMEND THEM TO ANYONE NEVER!!!