Incorrect data loaded on credit profile

My Diners club card was paid up and account closure letter was issued on 10 April 2021 by Rodwyn Wessles... My credit profile reflects missed payments on this account for June and July 2021 of R31 which is impacting my score negativity! I have sent an email to Rodwyn Wessles on 3 July 2021 after spotting the first missed payment on my credit profile, clearly nothing was done about this and therefore another missed payment was raised for July 2021. This is terribly inconvenient for me and so annoyed by this mistake. Please correct asap and eradicate those missed payment flags from my credit profile.