EXPLOITING CLIENTS

My mother purchased an ipad from MRP Mobile on a 2 year contract. The 2 years were up in 2018. In this time she only received 1 statement stipulating what was owed. It's been months now where the amount is still deducted from her account. I phoned the costumer care twice where they refuse to talk with me because I am not the account holder, only to find out that they decided to place my mother on a month to month billing system seeing as the contract expired. The last call we made to cutomer care was on 6 April at 13:42. They were asked that the account be cancelled with immediate effect. We were assured that it will be cancelled within 24 hours. Come month end another amount was deducted again followed by a sms stated the account is behind and it will be send to to the legal department. This is unacceptable for a business to make changes as they see fit and then exploiting pensioner in this way. We had no success what so ever to close this account. The Ipad doesnt even work so thesim card hasnt been used for over 12 months. Can someone please assist in this matter!!!! Very unhappy client