Pathetic Service and Processes

I took a 1 month short term loan in March 2022 with FNB, which is payable in 30 days from taking the loan which was paid in April 2022. FNB has FAILED to update the credit bureau accordingly by closing the damn account instead on my credit report it appears that I'm 11 months in arrears Lord knows how when this loan was paid in full. I've queried this matter a number of times to date it hasn't been resolved it's past 20 business days as they claim to be doing a cleaning up project with the credit bureaus which was supposed to be completed by the 1st week of June 2023 to my surprise nothing has been updated on my report instead I'm sitting with a bad record of an account that's in arrears for no reason. FNB's service is nothing but PATHETIC!!