Disgusting service from Vodacom

I called Vodacom on the 5th of February 2021 to cancel the 2 Vodacom I have with them. 1 was cancelled on 30/05/2021, the will only be cancelled on 30/06/2021, they have been deducting money from my account and now they are threatening me with legal action because for the past 2 months there has been no debit order going off and now they have blocked my phone I cannot make calls!!!