Reimbur*****t for extra deductions.

I'm Siviwe Mgoqi from Cape Town. I had a cell C contact. At around about the 24 January 2018. I called them and spoke to a guy. Told him that I wanna cancel my contract, he then gave me my cancellation fee that I need to pay. Then he explained to me that I first need to pay the amount at the bank, after two days I must call back and find out if the payment is reflecting, if it is, I must request for a cancellation for my contract and so I did. A month after (February) I found out my contract was still active, I called them and they assured me that it's gonna be cancelled. The month of march it was still active and they only cancelled at the end of march. So my query with them is that I want them to refund me for February and March, because my contract was supposed to be cancelled before the end of February. They are saying they not gonna pay me, because I used their services and didn't ask for their services that's why I was cancelling my contract. I had two queries with them about this. They never come back to me, they just send me an SMS that says " my query has been resolved" no one calls me and explain how it's resolved.