Experian SA not responding with disputes

I disputed two accounts, one from 2020 and the other one in October 2021 and no response nor update even after the 20 days from Experian and my credit report is still the same.. why does the NCR allow Experian SA to continue operating in South Africa while their service is the poorest across all the bureaus? NCR must help us I'm tired of sending emails after emails with no response. Seems like no one works there anymore.