That is horrendous! When I first saw the theme of your post I thought – "Ah - power cuts. Tell me about it." Because we get enough of them here in stormy weather. And when I used to rent a cottage on a farm, I needed a good supply of candles handy! But it was nothing like what you describe. That is dreadful government corruption and criminal activity, and it's a sober warning that having a nationalised energy industry is not always a good thing.
I don't know what the answer is, but I like the rude Eskomsepush app. I think that kind of authority-shaming citizen's action often works better than marching in the streets.
Also glad to see the use of the word "guzbuck" :)