EC-1TR0-2C14O6 *****ulent debit order on cancelled Account with recurring Debit Order

I cancelled the account with vodacom in 2022 december, but they continue to debit my bank account. I called customer care and they advised me that the account was cancelled, but the debit order still goes off my bank account. I receive a statement everymonth for the account that was cancelled. I sent an email to: ***** Disputes <********> and they returned an email to me advising "Please contact the cancellation department on 081958 to cancel your account.'' How many times do I have to cance the account? I am not satisfied with the service.