How do I enable call barring on a Vodacom data SIM?

[LoadShedder]

I have a Vodacom data only SIM in my phone as a second SIM. Any way to block calls on this SIM? I've tried my phone settings yet calls still come through looking for the previous owner of the number.

 

[Nod]

You could try this: https://networkbees.com/how-to-activate-call-barring-on-vodacom-south-africa/
I'm not on Vodacom, so can't confirm