Telkom Cancellations a Black Hole

On 14 November 2017 via the Telkom Online portal I gave notice to terminate all my telkom services and received the following three references: ********** , ********** and ********** . My services should have terminated on 14 December 2017 on which day I disconnected my modem and landline and cut up my SIM. I then received an account for the period 12 December 2017 to 12 January 2018 which I have not paid. I logged a query online on 16 December 2017 and received a case number ********** 1. I then received a telephone call from telkom on 28 December 2017 followed by an SMS asking me to telephone them to update my contact numbers. I had earlier updated online all the relevant details. Do their internal systems not talk to one another. On 10 January 2018 I submitted a further query via email to ********** Still no response. All I want is a final account for the two days in December 2017 so that I can pay them and cease to have any further contact with the company.