Vodacom - Spam calling for upgrades - After you said no

I have been with vodacom a very long time. I have 2 numbers with them and both due for an upgrade. Due to the pandemic I'm not upgrading any of the 2 numbers. I have said this multiple times to multiple people at vodacom that I'm not interested and I want to stay month to month. They made "notes" on my profile apparently so that I don't get called again. But I'm still getting phoned for my contract upgrades. They are trying to force you to pay less monthly but then you have to take another 24 months contract. Which means you can't cancel anytime you want without settling your contract.

I have blocked majority of vodacom numbers. I'm at the point of cancelling my numbers with vodacom permanently.