Continue to debit after 2 consecutive cancellation

My contract expired on the 31/10/2015. I went into the Gardens store on the 01/10/2015 to cancel the contract. On the 30/10/2015 i got debited with the instalment which should not of been processed and 30 days notice was given. On the 02/11/2015 after scrtuinising my statement i contacted the contact centre on 808. Spoke to a Sibusiso and explained the same situation. He confirmed the contract was cancelled and advised the cancellation division would contact me. *** was given. This morning i scrutinise my statement and R889.40 is debited. I contact 808 again and speak to Noguthula *** and she advises me that my account is in arrears and not cancelled.<br> I need a senior person to please investigate this matter and remove my account from your billing list as this is getting tiring trying to cancel a contract with MTN. Please contact me on *** as this is my contact number ivo the MTN contract being cancelled.<br> I expect feedback prior to close of business. Please note that both debit orders have been returned by Financial service provider and this is not the service I expect from a Corporate like MTN