Over charge on Diesel capasity at Total Solomon Mahlangu dr

I went to put Dieslel in my Toyota d4d capacity is 76 L I stopped the pump attendant when I saw the meter was at 90.3L and my bakkie was not full yet. We checked nothing was leaking. My bakkie had only done 640km on previous tank of Diesel. So it wasn't empty . Maneger wasn't very helpful. She wanted to drain my bakkie to see wat capacity is. She could not understand that you cannot put 90.3L into 76 L tank.