MFC DOESNT PROPERLY UPDATE EXPERIAN CREDIT BUREAU

MFC NEVER UPDATED EXPERIAN CREDIT BUREAU AND FOR THE LAST 2 MONTHS IVE BEEN STRUGGLING WITH THEM AND EXPERIAN TO CORRECT MY CREDIT REPORT. I HAVE NEVER BEEN IN ARREARS AND MY ACCOUNT WAS PAID IN FULL JUNE 2019. BUT EXPERIAN SAYS IM IN ARREARS DEC 2019 to MARCH 2020????? IF THE ACCOUNT WAS PAID UP IN FULL JUNE 2019 .... HOW AM I IN ARREARS IN 2020???