Looking at the explosion yours have three freezer drawers usually found in 70:30 split machines.
Measure the freezer door height and divide it by the overall appliance height ie if freezer door is 60cm and appliance is 180cm tall then the freezer is a third of the overall height which makes it a 70:30.
To be sure you could phone Neff service on 0344 892 8989 there is an option for product advice, just give them the ENR number and they will do the rest.
The o in the ENR is actually a zero 0.
Don