CANCELLATION NOT DONE AND TELKOM REFUSING TO TAKE RESPONSIBILITY FOR THE MISTAKE

Can someone at Telkom please contact me regarding the cancellation I submitted in January. My account must be fixed to show the correct balance. I have been trying to get this done and had no success so for. No one at Telkom want to take responsibility for the cancellation that was not attended to. How can I pay for service that I cancelled. It is Telkom staff that did not do their job now I am being held responsible for their mistake.