Standard Bank Vehicle Finance doesn't care for their customers

At the end of 2019 we set up our vehicle finance through Standard Bank. A few months later their collectors contacted us, informing us that we were behind in our payments. We showed them proof that the monthly debits were going off as set up by Standard Bank. We then found out that whoever set up the payments used the wrong account reference and the payments weren't allocated to our account. After quite some time, everything was sorted out and at the beginning of June the direct debit was deducted under the correct reference. However, they then still took another direct debit payment under the wrong reference. We immediately contacted them and asked them to reverse the payment. We have now been waiting two weeks for the payment to reflect in our account. We find it appaling and unfair that corporation can harass the man on the street for "immediate payment" but when THEY make a mistake, it takes them weeks to rectify it. They have essentially placed us in a difficult financial position by taking twice the amount, because the money they took was meant for other essential expenses. I would not recommend doing business with Standard Bank Vehicle finance, because they do not care for their customers.