Still no change to banking details

If I could give a negative rating I probably would. It's now been over a week since I submitted my change of banking details form. The life policy was updated but not my medical aid details. Now you went ahead and deducted it from my old account with obviously no funds which resulted in unpaid fees. How difficult can it be to update the bankint details? Now i have no problem doing a manual payment but that doesn't solve the problem as I have claims to put through as well. You charge exorbitant premiums but you most certainly lack efficiency and client care