ABSA WRONGFULLY UPDATED MY CREDIT PROFILE

I have a personal loan with Absa which was handed over at some point. i have been making payments to bring it up to date. as of january and february 2019, my loan account was up to date but now all of a sudden, ABSA have stated that my account is in arrears with over 150 days according to the data on TransUnion! How can an account go from up to date in february then all of a sudden be in arrears by over 150 days? Just like that? I have been contacting Absa personal loans department and they confirmed the montly payments to be R 1100. Wich I have been paying. Even this week I made a payment of R 2200! But ABSA listed me as being in arrears with 150+ days on Transunion. This is unfairly affecting my credit record as i want to buy a car. I urge ABSA to please update my credit profile accordingy, my account is up to date!!!