MTN DEDUCTING EVERY MONTH FOR WIFI

On behalf of my father, who is a pensioner and does not have wifi at home anymore, I would like to mention that he has been trying since 2016 to cancel his MTN subscription for his wifi but to no avail. He cannot get through to the call centre, as he is sent from pillar to post; when he enters a store he is told to contact the Customer Care line, and to top it all he was even given the number for the SA Customer Complaints Board Vaal. So come on MTN, can someone contact him regarding this. You will even see his account has not been used in the last year, yet the money is deducted from his account every month. And then he has to physically go into the bank and get it reversed.