Credit Reporting Privacy Code 2020, clause 5, rule 7
If you believe there is a mistake on your credit report you can contact the credit reporter to ask for it to be corrected. The credit reporter will make a decision to either correct the mistake, or tell you why they are not willing to change the mistake within 20 working days.
Even if they refuse to change the mistake, they have to make a note on your credit report that you requested the change, If you are not happy with why they are not willing to make the change on your credit report, you can complain to the Privacy Commission. See “Complaining to the Privacy Commissioner” in the section “Privacy and Information”.