Following RPM’s article on the topic: here is a summary link farm for the visitors.

It started with the rebranding: https://rodent.za.net/vodacom-discovering-old-fail-with-red/

Then, trying to do some things on my account: https://rodent.za.net/i-forgot-what-was-the-point-of-this-website-again/

And again: https://rodent.za.net/the-daily-vodacom-red-fail/

And again: https://rodent.za.net/vodacom-wake-the-fsk-up-please/

Worse and worse, over the course of 12 months.