Cancelled but still being billed months later!

<p>Hi there. My wife after speaking to a consultant sent through a written cancellation request for an account that was no longer needed.</p> <p>This was emailed as requested by Telkom to *** on 10 July 2015. WE followed-up 3 or 4 times.</p> <p> </p> <p>However, to date we are still being billed monthly and the line has not been cancelled.</p>