Billed and additional month after cancellation

Cancellation of contract on following mobile nos: ***, ***, *** not done by Shameem Ramjee at MTN Ottery. Then I eventually went to MTN N1 City who processed it, but I was billed for an extra month due to MTN Ottery's under performance. I emailed Shameem Ramjee (Ottery) several times who were not able to provide the reference number of the cancellation she submitted to Regional Office, yet I had the copies of the cancellation documents which I asked for on the day. I eventually contacted Call Centre Regional Office spoke to Mesechaba Melato and emailed her my entire query she apparently submitted it to the retentions department, to date no resolution or feedback. I email Masechaba Melato twice after this and received NO response. PLEASE NOTE MY CONTRACT WAS DONE IN AUG2015 SO MY LAST BILL WAS SUPPOSE TO BE SEP2015, BUT I WAS BILLED IN OCT2015, because MTN OTTERY NEVER SUBMITTED MY CANCELLATION DOCUMENTS!!!!! I HAVE SEEN SO MANY COMPLAINTS WHERE CLIENTS ARE BILLED MORE AND MONIES NOT BEING REFUND ... I DEMAND MY REFUND. THIS QUERY IS GOING TO THE COMSUMER COUNCIL !!<br> <br>