Incorrect Credit Information - Experian

My credit status on the FNB App, Nav >> Money, shows that my vehicle finance account with MFC is in arrears for 9 months. If I dispute this information I need to reach out to Experian to fix it. This is unacceptable! It negatively affects my overall credit score and my ability to earn eBucks - I am losing out on points towards my level progression. I tried calling FNB to get the issue resolved but after several transfers I just hung up - no one knows how to fix this.