Fed up with Vodacom after sales

I contacted Vodacom in December 2024 to advise that I have lost my router and requested for my sim to be cancelled.I was told that the request has been completed.Last month they debited me R580 which I had to reverse with my bank and this month again an amount of R680 was attempted to be debited.I now receive an email saying that should I not pay I will be handed over to the legal department.Please explain this to me as not only is this damaging my credit score but it’s also wasting my time because every month o have to call the bank to reverse the debit order…