Vodacom keeps spamming me with calls

I have now had enough of your Telemarketers phoning me so often. I have previously contacted your call centre and they confirmed they have removed my number from ALL Vodacom's marketing stuff and that I won't get a call again from any Vodacom marketing campaign. They also assured me that if someone tries to sell me products over the phone (Vodacom related), that this can only be processed when I physically go to a Vodacom outlet with my ID, so why am I still receiving these marketing calls? Are you guys ignoring the POPIA act? In the last 24 hours, I received three calls from Vodacom, trying to sell me either more minutes or more data or capped fibre. What else must I do, to stop getting these calls? I have been a Vodacom contract client for twenty three years and if I get one more call, I am cancelling all three my Vodacom contracts, enough is now enough!