Attempting to close MAKRO account pathetic

I have settled my MAKRO account (***) on 09/04/2021 and requested proof of settlement via email ('***')on same day. On 12/04/2021 i received a text message indicating my account is handed over for collections and responded yet again via email with proof of payment requesting letter of settlement. On 13/04/2021 I received reply from ('EM_MDD_MAKRO' <***>; '***') indicating the closure process has been done and balance is zero. On 25/06/2021 my bank indicated that this specific account is on my ITC record for an amount of R 3,880.00. Again i emailed and asked for urgent closure of this issue as i am now penalized due to poor customer service on my account since 09/04/2021. I will not have a poor ITC record with ridiculous amount outstanding due to the poor service i have received since April 2021. I need resolution of this matter as it infringes on the NCR rights i have.