Still Billed For Cancelled Contract

On January 3 2015 my account was debited for a device and sim on contract that I signed up for on 4 December 2012 on a 2 year contract.<br> <br> That same morning, January 3 2015, I went to your branch in Cavendish Claremont to confirm that I was done paying off the device and that I was free to cancel the contract. I signed the necessary paper work and received confirmation that my contract had ended and there were no outstanding amounts due.<br> <br> Today the amount was debited from my account again. Having spent 2 hours queuing at your Cavendish branch, I am in no mood to go back and repeat myself.<br> <br> You will find the number of the MTN sim in question next to my mobile number. Please contact me if you require more details, if not, kindly cancel the contract and refund me immediately.