Vodacom below pathetic

I had a contract with Vodacom which ended in July/August 2022. I cancelled the contract in February 2022 and paid the penalty for early cancellation. I still get debited every month. If I reverse the debit (under R500) they just double debit me the next month. No help from anyone from Vodacom. I have now emigrated and and have to resort to email which is unresponsive