terrible call center experience

<p>After selling my property in November i contacted Telkom on 12 December 2016 to cancel the account with effect from 21 December. I called the call centre and painfully went through all the red tape - 1hour at least... Then on top of this also had to send some emails with particulars of the account etc. to finally cancel my contract for account ********** 79200. After paying my last bill in January and even receiving ac onfimration of receipt from them I sort of believed the matter was settled, yet I didnt even flinch when i wrongfully got an invoice from them in Feb, seeing this is "how i know the Telkom experience"... So i calmly called in and went throught the whole rig-marole; resending all the emails and quoting reference numbers and so on and so forth and again, hoped it would be final. BUT NOW TODAY i am actually truly gatvol after receiving the March bill......Telkom billing goes on AS IF I HAD NEVER CALLED THEM TO CANCEL ONCE. How do i get TELKOM to cancel the account and let life continue without me receiving Telkom bills for a line that i've closed months ago and a property that i have sold in November 2016?????? how tell me please?</p>