Unhappy Loan Client

I took loan at Capitec loan at which I tried to push it to pay it up before the 84 months. I paid up the account on the 22 month but I am still been charged by Capitec the full monthly fee and interest for the R0.01. everytime I trying to settle this amount it keep on telling me I have exceeded the outstanding balance. When I called their agents they dropped me off ,while I was still looking for clarity the Agent name from Collection is Nokuthula I called in at 18:33 on the 28/06/2022. Account no *** I need this account to be settled as I have paid what was due. This is really affecting my budget as it also impact my other commitments. The Capitec service agents have no customer care ,they are also arrogant and not willing to listen. I have been with Capitec for years never received such hostile treatment, treated as if you are nothing. I am really so angry