DEBIT AFTER CANCELLATION OF CONTRACT

IT WAS ON THE 15TH OF JULY 2015 WHEN I POSTED ABOUT CELL C DEBITING MY MONEY WITHOUT MY CONCERN. THEY WERE THEN INCONTACT WITH ME AND REPAYED MY MONEY. NOW CELL C HAS STARTED AGAIN. THEY HAVE DEBITED MY MONEY TWICE, I DEMAND THEY PAY BACK MY MONEY WITH INTEREST AND THE DEBIT FEES. IT IS SO ********* OF CELL C TO DEBIT MY MONEY WITHOUT ME OWING THEM. IF MY MONEY IS NOT REVERSED IAM TAKING THE MATTER TO OMBUDSMAN. THEY ARE VERY UNPROFFESSIONAL