ADT *****ing money from account

After cancelling my services with ADT they keep on *****ing money out my account I now had to reverse the debit order for a 3rd time. Clearly ADT is out there to ***** people over and ***** from them. The bank cannot stop the debit order and ADT refuse to do so instead after disputing the debit order ADT change the code in order for it to go off again and again - ADT is the most ******* security service I dealt with ever.....