Cancellation of Line

On the 26th of August 2014 we e-mailed a letter to Telkom in which we requested a cancellation of our current line with Telkom. On the 18th of September 2014 our line stopped working, before this date I contacted Telkom and they informed me that within a 2 week period a consultant will contact me to confirm the cancellation of the line. Now all of a sudden i received and e-mail saying that we used the line till the end of December whic his nonsense as the wifi and our internet stopped working on the 18th of September last year.