Gorenje CrispZone Cover

Hi everyone, thanks for your time.
I have to change the transparent plastic cover of the CrispZone drawer on my girlfriends Gorenje fridge. I have already ordered the right part, but I can’t seem to figure out how to remove the old lid from the rest of the drawer. All those little latches at the bottom and the sides keep snapping back in before I can loosen all of them and it also seems to affect the white plastic of the body of the drawer if I use too much force.
Am I missing something here?
Would anybody be so kind to offer some guidance?

Thanks in advance,
Jan

(The part: https://shop.ukwhitegoods.co.uk/407996-gorenje-crisper-drawer-cover)