Super frustrated user

I have requested for a cancellation on my accounts with Vodacom and requested a quotation fee to cancel both accounts. During this period, I have not received a cancellation confirmation and been told I must pay the monthly instalment of the contract of which I have already paid the cancellation fee in full, and when you call you are taken from Pillar to post no answers. How do you debit a person when a cancellation fee is paid whiles it's stipulated on your website that this is part of the cancellation fee?