Vodacom customer service is a nightmare

I regret ever sharing my banking details with Vodacom, now they just debit my account as they please. I cancelled by expired contract with Vodacom back in September 2020, but Vodacom continued debiting my account. I wrote a review on this platform in November, the HelloPeter Vodacom agent pretended to help me, went as far as sending an E-mail saying my contract will be cancelled 30 November 2020. Fast forward January 2021, Vodacom is still debiting my account. The amounts being debited don't even make sense, I'm disgusted.