Bad Telkom service

My dad is a pensioner and asked me to help him cancel his Telkom account. I went to the Telkom Nicolway Mall Express on the 1st of September (and give a months notice) to cancel both Telkom and ADSL Lines. He even received a reference number via SMS. When my dad went to the Alberton branch on the 16th November to find out why his line is still working, the lady told him that they have only cancelled his ADSL Line. He requested a statement. Behold all else he has an outstanding account for October and part of November because of their insufficient work that has not been done properly. I hope Telkom will not hold him responsible for an account that he has closed within notice period.