Cancelled Contract

on the 08/09/2015 I contacted the MTN call centre to cancel my contract which was due to expire on the same day. I spoke to Beryl - received a reference number ***. I specifically requested that no further debits be taken off my account - which she assured me it won't happen as I cancelled within the appropriate time line. on the 30/09/2015 my account was debited for the amount of R103.44 (I assumed this was for used data or airtime) however again on the 31/10/2015 my account was debited for R103.44. I contacted the call-centre today and spoke to Ntombi who couldn't assist or explain why my account was debited. She advised me to call a different division - however she had given me a number that doesn't exist. I tried calling the MTN call centre *** back and then was on hold for over 6 minutes.<br> I need to know what am I being debited for and why - when I have followed protocol to cancel my contract - and requested that no further debits off my account to be processed. There is no consent or authority for MTN to be debiting my account. The telephone number I'm enquiring on is - ***