Maladministration at Standard Bank Vehicle and Asset Finance.

I find it strange for a financial institution being unable to read their statement. I had a vehicle agreement for 72 months to pay of which last payment as per the agreement was in December 2020. I have paid 3 upfront installments during the term with the intention to pay off my account quicker. In November 2020 was my 72nd payment towards the account but to my surprise standard continued debit my account until 2021 March whereby i was reversing the payments after this date since they have failed to justify the amount they debited on my account until todate. My account was debited with 70 succesful debit orders and made personal deposit of R6400.00 + R6000.00 + R6000.00 plus R12040.00 that they alleged i still owed them and paid since my credit record was getting to messed up. All the payments are reflected on their statements but the only response i got is that they have been advised by the legal that there is no access payment made whereas their statement say otherwise. Even when adding the total funds expected as per the agreement there is R18400.00 more than the credit amount reflected on the signed document. Standard Bank failed to advise why the additional amount was charged on my account. It took 9 months to get my eNatis document for a paid up account for my 1st card and 4 months for my second car and every time i enquired about my documents was promised will be received within a period of 7 days and no service received until i took the matter to hellopeter for assistance.