Updates on credit profile

I called Nedbank to update my credit profile correctly because it was incorrectly updated I settled credit card which did not have arrears.Nedbank updated it as a missed payments for Dec2021 on both Experian and trans union when I called client services they transferred me to collection then collection transferred me back to client services they again transferred me to legal I ended up not getting any help because consultant of Nedbank didn't know what to do