Cell C Debits Account After Contract Cancelled!!!

I have posted a complaint two months ago, where I found it impossible to cancel my two year contract by calling the call centre, even though I had reached the near end of a two year contract of absolutely atrocious cell coverage. <br> I called the Customer Care Line, but they insisted I call exactly 30 days before my contract ended to cancel. This was not reasonable since I was planned to be out of the country 30 days prior to my contract ending.<br> <br> Eventually after posting a Hello Peter complaint, I received an email by Customer Service that my contract will be cancelled and I received an SMS confirming the same. But on 1 January 2016, although my SIM is ALREADY migrated to a Easy Chat Pre paid, I am still having a monthly debit order going off my account. I called to query this, but it seems cancellation is on leave, and nobody can help me because I am already on Pre paid. If so, it's HIGHLY irregular to debit an account for monthly subscription when there is no valid contract in place, with a SIM on pre-paid already. Please, Cell C, sort this out. This is not good for your business at all. First you make it impossible to cancel, without me complaining, and now this Debit Order issue!