Cancelled account - still being billed

Good Day <br> <br> On 1 september i sent a mail through to hello peter and a moses mo***eng responded to me. He assisted me with cancelling my contract. I have it stated in an email that it was completed and cancelled! <br> A week a ago i have a cell c rep call me, very uptight contacting me about that very same contract that they looking for money and stated i never closed my account. This is the most annoying thing why cant you just CANCEL MY ACCOUNT AND LET ME BE!! <br> <br> Someone either isn't doing their job but i want this fixed! <br> <br> Regards, <br> <br>