Line Cancelled - Still being Invoiced

I cancelled my Telkom services - land line and ADSL on the 8th Dec 2014. I was informed that I needed to give 30 days notice, which made the cancellation effective 8th January. I have been invoiced for February subscriptions, even though I have no service from them. I have tried on numerous occasions to call Telkom, spending an eternity going through all the automated options and unable to speak to a consultant in their accounts department to assist me.<br> The Reference number for my cancellation : ***A<br> Please can somebody resolve this issue. I need this account closed and all charges post 8th Jan 2015 reversed.<br> <br> <br> <br>