Contract expired

I called to cell c customer services to make sure that my contract is cancelled due to contract expired this month. Nkele from cancellation department want to me to still continue with my contract to prolong for another month and month end of October it will b debited. My concern is my contract had expired and I called in last month and I was advised to call in for my contract not to continue. Come to my surprise she nheke wants to me to pay for another month my I served my 24 months contract.please stick to your promises . I payed for that contract without skipping one one. Please CANCEL IT!