Cell C Get More - cancelled but still being billed

I cancelled my Cell C, Get More subscription back in August and they notified me of the 30 day period for cancellation. Everything was great, the customer service was fantastic and I thought it was all sorted. How naive of me.<br> <br> I have been billed every single month since I cancelled back in August, they even sent me a text saying that I hadn't been billed for August and that I would be debited twice this month to cover the cost.<br> <br> This is completely unacceptable and I feel taken advantage of. I'm not even looking to get refunded I just want them to cancel this stupid service and apologise for their mistake.