Experian Is Ruining My Credit Report

I literally cannot get any credit, despite having a credit score over 600 and more that R9000 left after all expenses, because these guys claimed I was in arrears for accounts I have already settled, and now they refuse to remove the disputes on my report after they have already been settled (I sent them the settlement letters) and they acknowledged them and agreed to remove the open accounts.

Now still months later, I have had banks, specifically Nedbank and African Bank, telling me I cannot get any loans or financing, because you guys have still not removed the disputes off my credit report. I'm unable to get any financing, because you guys refuse to update your system. Please fix this.