MiAssist and terrible service

I have had the worse experience ever with cancelling a MiAssist package that was forced onto to me. I have spoken to countless call Centre agents, and even had an exchange of emails with a *** who assured me that this subscription has been canceled. Three months later I am still being billed for MiAssist even after receiving sms's that this has been canceled. I am always told to call the MiAssist number which is never answered. Will I be refunded for all these ********ly debited amounts?

Is this the service that Cell C offers to its clients? This is surely the first and the last time I use cell C!