Selfish bank and poor and pathetic service

I am currently under debt review and standard bank was informed that I am under debt review but they still deducted money for vehicle finance. I have submitted a request for a refund and they said it takes seven day to be refunded but they haven't refunded me yet. They don't care about customers because if they did they were going to stick to their terms and conditions. This is bad because they took the last money I had and they are dragging their feet to refund me. This shows that they don't care about their customers.