Worst Mobile Operator ever - Cell C

I cannot get rid of this mobile operator's debit orders against my bank account each month since my Data Contract with them came to an end on 31 August 2020. They just upgraded my contract unilaterally to a more expensive contract after 24 months - despite me cancelling the contract...and the previous contract expired after 24 months. Their defence of these ********** activities is - that their mobile phone contracts do NOT have to adhere to the Consumer protection Act 68 of 2008, which states that no contract can be longer than 24 months and that they cannot extend it beyond 24 months WITHOUT the subscriber's written permission. They say this law is not applicable to their Cell C contracts. I have now referred this matter to the Ombud for the Consumer Protection Act as well as the National Consumer Commission . Just a pity I have to go to these lengths and waste so much time to get rid of these pests...