Terrible Service

I am very very disappointed! After my initial complaint here (http://hellopeter.com/telkom/complaints/the-call-centre-is-useless-***) I did get a phone call from Telkom. The lady promised me the account will be stopped as from end January and that she will come back to me to confirm. She never came back to me and I still received a new invoice dated 14 January 2015 regarding line rental for February 2015. I already vacated that address. THIS IS TERRIBLE SERVICE! I tried calling the call center again referencing the reference number that was given on the initial complaint, and to my surprise they told me that that reference number does not exist!