Cancelled Service still being debited for

I cancelled our ADT Service on the 24th May 2017 - subsequent to this 5 emails and various calls ensued. To this date there has been no feedback. The account in question is INT00418JH - Integrated Pump Technology. Instead there has been numerous debits from our bank accounts. Apart from the fact that your staff has no intention of helping their customers, I am of the opinion that they require training. The time spent dealing with you is never to be regained, the pure frustration and feeling of helplessness. Please can you cancel the service and issue a refund. Also some feedback would be appreciated. - But no that's not part of your business principals - You just know how to debit and place people on hold.