Pathetic service from Telkom

My services have been cancelled in May 2019 whereas I asked to cancel it in June 2019. Why it was cancelled with immediate effect while I wanted to give 1 month notice. Moreover I am being asked to pay the penalty. Why should I pay the penalty when I already have paid my bill in advance and it is not my fault that services are cancelled immediately. I am trying to reinstate the service for the current month but not one is helping. I am being referred to different department every time I call customer care. What kind of services Telkom is providing to its clients? I am following up for past 10 days but no avail.