Vodacom has pathetic customer service!!!

I was contacted by Vodacom for an upgrade in July 2021. After sending me the incorrect phone it took weeks to get them to collect the phone because there is nowhere where you can send it back to. Then they cancelled the fact that I cancelled the upgrade for another month. Silly me tried 2 days ago to do the upgrade online. I received the confirmation SMS and that a consultant will contact within 24 hours. Well, they NEVER contact back. So 48 hours later I phoned to discover they don't have my upgrade. Phoned today again and 2 different agents are going to phone me back. Did I say before they NEVER phone back? The best of all is that I've been a loyal customer - now with 3 different contracts - for more than 25 years. Please let me know what network will actually look after me because it's definitely time to move on...