BAD BAD BAD SERVICE FROM VODACOM

I am EXTREMELY unhappy. I cancelled 2 contract's and also their insurance for the 2 numbers. I have phoned and spoken to many people from Vodacom. Send many emails with the proof of cancellation that was send to them in MAY 2021. Until now NOV 2021 they are still deducting those 2 phones and insurance from my account. I have asked the to refund me and I have many promises of investigation and refund but still NOTHING. As soon as my contracts are finished with VODACOM I am moving ALL my accounts to a other service provider.