Not Cancelling a contract that has expired

Good day<br> <br> I have emailed retentions/ cancellations to end my contract<br> <br> Email was sent on the 24.11.2015 and stated:<br> <br> Cancellation of Account *** / Number ***<br> Please cancel this contract<br> Contract end date : 30.11.2015<br> <br> Received a response: Wed 2015/12/16<br> Please accept our sincere apologies on any inconvenience caused and the delayed response to your email.<br> <br> The reference number of the case logged as per the request in question is ***5, you can follow up on it anytime on 081180 and rest assured that someone will be in contact with you to advise the turn-around-time it will take to address and resolve this matter with you accordingly.<br> <br> Thanking you in advance...<br> Telkom_ Retentions.<br> <br> Nobody has made contact - and when I phone 081 180 to enquire - they tell me the number is STILL ACTIVE 04.01.2016<br> <br> Please phone me urgently on *** to resolve this matter and CANCEL my contract<br> <br> PLEASE