Line cancelled but still received an account and then told line not cancelled as yet

<p> I’ve cancelled my ADSL/landline and 20GB Softcap account and still received an account for the line dated the 12 July to 11 August</p> <p>The request to cancel the line was sent through on the 06/06/2017. The line was cancelled on the 07/07/2017. Confirmation received via sms</p> <p>I contacted Telkom last week and it was confirmed that the line was cancelled on Ref number ********** 05</p> <p> I contacted their accounts department this morning and they informed me that the line is not cancelled on their side but only suspended and still in process to be cancelled. They also informed me that I will still be billed until the line is cancelled (they do not know the TAT for the cancellations - can be up to 30 days)</p> <p> How can they bill somebody for something that does not work and inform you the line is cancelled but then tell you it's only suspended. </p> <p>The consultants are also provided me with 3 different email addresses to escalate the query but not one of the emails goes through</p>