Vodacom sucks!!!

Can someone please assist me urgently. I had a Vodacom contract that ended in october 2023. It was a 30 month contract. I was told to send in a cancellation 30 days before the contract end. I emailed *** on the 01st september 2023, asking that the contract be cancelled in october when it ended. Vodacom has still been debiting my account every month since. I have sent about 6 emails, called them twice to ensure it is cancelled but still nothing. Vodacom has got to be the most useless, pathetic service provider ever, i will NEVER take out another contract with them. Not once has someone contacted me . I have not given vodacom permission to debit my account however and whenever they wish to. I am so tired of dealing with this bunch of useless idiots. If someone does not call me to sort this out and my account is debited once more , i will be seeking legal advice and please can it be someone that can understand simple english if thats not asking for too much. Vodacom are just *******