Pathetic service from Telkom!!!!!

Im so fed up with the service I'm recieving from Telkom I requested to cancel my services in May it was not done 19 June 2018 I phoned again and recieved a reference number ********** 4 apparently their turn around time is 72 working hours it is almost 7 months later and im still being charged. I phoned again afterward but did not receive any reference numbers on the 12th of December i phoned again and recieved a reference number again ********** 5 and they keep on telling me that i have to cancel online which i told them im struggling to do why is it so difficult for them to just go on their system and cancel my services!!!!! Today on the 4th of January i phoned telkom again and i spoke to nthabiseng who told me that the person who logged reference ********** 4 did not dispatch the call to the correct department i mean this call was logged in June my account is now in arrears with almost R10000 i asked her to speak to her manager by the name of Thato Radalago who was busy on another call and he was going to phone me back no call back was recieved im now on ITC due to telkom being ***********!!! Im so fed up and exhausted I dont know what to do anymore for them to clear my name and stop charging me!!!!!!!!!