https://www.timeslive.co.za/sunday-times/business/
I think a basic rundown of what I've seen is:
1. Remaining refinery is offline. Gas lines are enormous and either have or will take out the remaining supply on hand with no resupply from the offline refinery.
2. Durban is the largest port in southern Africa and (so I've read) the entrepot for 90% of trade into southern Africa. Durban has been destroyed in large part. The port is shut down. Refinery shut down as mentioned. Warehouse, malls, and retail looted. No way to restock those retail shelves.
3. The highway from Durban to Johannesburg is a rioting nightmare with trucks refusing to drive it. J'burg has also had huge looting and destruction of infrastructure. https://www.iol.co.za/news/politics/truck-drivers-bear-brunt-of-kwazulu-natal-protests-2d4d7bac-d0e2-4ddf-83e9-491aac7c84ef
4. Basic agricultural production is being affected. https://www.news24.com/fin24/companies/agribusiness/all-kzn-sugar-mills-now-shut-after-cane-farms-set-alight-citrus-exports-halted-as-riots-rage-on-20210713
5. Pharmacies and a drug factory looted and burned. https://www.timeslive.co.za/news/south-africa/2021-07-14-90-pharmacies-lost-to-looting-sprees/
6. It's winter there and now snowing.
Hard to imagine this doesn't become an even greater nightmare.