Unfairly Treated

Last month I got call from Cell C Get More & was offered this get more deal, it sounded good at the moment but a day after I realised that I don't actually need it or have any little cent to spare so I called Get More and cancelled the offer. After the phone call my assumption is the service has been cancelled since I was told I was gonna start paying end of October. This morning I get my Cell C bill for the moth and I see it's actually more than what I normally pay and when I call Cell C they tell me that I'm being billed for get more and get this they billing me for 2 months when they told me I will start paying in October. This is very unfair they don't even deliver to what they said, so I call this Get More thing and they tell me that there's a 30 day notice, was never told about that when this was offered to me, was never told about that when I first called to cancel, now this morning I get a cancellation sms of which I didn't get first time I made the cancellation. I'm not liable for people's incompetencies I shouldn't be paying for something that I cancelled in time, all these people care about is to make commission, I'm struggling as it is I don't have money to throw around like this, every cent in my household counts .and as far as I know I DO NOT OWE GET MORE A DIME!!!!!!