Telkom Cancellation Problem Since May 05 , 2018

I have cancelled my Telkom Internet on May 05 2018 and according to their website , it takes 30 working days to cancel their service . I have received a case number as well . On June 21 2018 , I phone them and spoke to Portia of which she said that my internet service would be cancelled within three to five working days , apparently something went went wrong with Telkom backlog and that is why the account wasn't cancelled . Today (July 31 ) , I phoned them again and spoke to Nandiphe on the same 10210 and was told by her the same said backlog problem and that Portia did not know what she was talking about . I am still struggling to cancel my account since May 05 2018