Debit order after settlement no help

No response via email, pulled settlement on 27/06/2023 that EXCLUDED the installment, vehicle was settled at R331 103.54 the settlement letter clearly showed that amount was R324083.58 + Installment R7019.96 of 29/06/2023 making it R331103.54 that means the debit order should NOT have gone off as the total amount paid now was R338123.50 and not R331103.54 as indicated on the settlement documents, to sum this up the debit order was not to be run from my account as it was settled. Kindly assist with the refund back to the account where it was taken from, and full closure of the account, and a paid up and closed letter via email. R7019.96 should be paid back to me as this was deducted via debit order after settlement was made.