Vodacom Fiber Upgrade

3 weeks ago I asked for an upgrade on my fiber account from capped to uncapped, I was told it has been done and the Vodacom Fiber APP also confirmed that i was under uncapped, recently my internet speed decreased, i called the call center and I was told someone forgot to update it, this is my 5th day still nothing has been done, i have sent emails and called their call centre with no HELP AT ALL! This is frustrating because when they came and sell fiber at my house i was promised excellent service.