Cell C contract

Good Morning <br> <br> THABISO SHUENYANE <br> <br> I hade contract with CELL C for 24 months, it expired September 2015 but they still deducting money from my account when I call ask them to cancel the contract they telling me to wait for 28 days and when I take contract with them we agreed with 24 months not 26 months.<br> <br> I want the contract to be cancelled and my money bust be credited back to my accounts.<br> <br> KIND REGARDS <br> Thabiso Shuenyane