Contract cancelation

I've just called vodacom to cancel my data contract which expired in September because they still debited me in October, my call was taken by Mindy who insisted on giving me another contract after I had to her a MILLION times that I don't need another contract. Extremely rude, interrupted me at every turn. Vodacom is training their retention agents not to listen to clients, Vodacom and their agents are full sh*t. My whole mood has been ruined by something as simple as that. *******!!!! customer experience and *******!!!!people