HELP!!!!!!

I had a Private Banking account with Standard Bank. I moved to Absa due to their low interest rate on a home loan. I Vehicle and Credit card remained with Standard. In April, I requested that they change my debit order details to avoid any missed payments. Today I am about to make another manual payment because they have not changed the details, and at the branch the refered me to the Vehicle Finance Department. That department said I had to make a manual payment for the banking details to be amended, which I did, but they still have not made the changes. I am exhausted.