Prejudice, miss use of power

Capfin handed me over. I've finally paid them up. They update on experian as account paid up on the 7 August 2024. On the 4th of September 2024, they went back and update on experian as though I still owed them. I phoned capfin, they stated there was a glitch on their system. That I should just dispute it. Disputes are resolved in 60- 90 days. Where they can just update my status which won't take even a month!!