Vodacom I'm out of words, *********** no technical skills

Vodacom, you are testing my patience, and I don't know what to do anymore. Upgraded my line to 200Mbps 25 February 2025. Got a notification the upgrade was completed. Same night had to log a call because the upgrade wasn't done. Since then I'm paying for a 200Mbps line but still have a "100Mbps" line. Vodacom blame OpenServe and OpenServe blame Vodacom and all the technicians do is monitoring my line, don't know for what, hope it fixes it by itself. Currently my line is running at 24Mbps Download and 38Mbps Upload. Please tell me how one is supposed to get work done like this. Not even ICASA, which is a monitoring body over Vodacom, MTN etc is coming to the party.