Pull-forward internal shelves from Howdens (Ringmer BN8)

PLEASE NOTE: The picture with the cupboard is not taken by me, it’s from the Howdens catalogue. And the other picture is what it looks like, but, again, isn’t taken by me, it’s an example of a very similar thing.
We have taken the internal pull-forward shelves from a Howdens cupboard and have kept all the bits together but there are no instructions on how to reassemble it (though there aren’t many parts). It looks like the pictures but isn’t identical.