Pathetic Service from Intellicell

I have canceled my contract with intellicell end of July because I had finished paying for my 24 months contract. end of August they debited my account for R299 and I thought maybe it's a late entry and end of September they debited again, I called on the 2nd October to enquire about the debit orders and they told me that I had to call and cancel, but when I told the lady Bulelwa that I had called in May and July she told me that they don't have a record of my calls although at the beginning of the call they will tell you that the calls are recorded. And they have not removed the debi check from my account which means come End October they will debit my account again! They are *******