Bane - I actually have an "extra" one of these, that when I pulled my seats to put the Scroth harnesses in, appears to have been "dropped" probably at some point in final assembly, behind the passenger seat. Seems that even Lotus Mfr/techs apparently dread the - "EEK... it's going under the seat!"

as much as we do! I can see it now, someone sinching down the roof slides in to put this bracket on and drops it....
"Shoot, Nigel - that one's GONE... can you hand me another one off the shelf there possibly please?"
Where mine's easy enough to deal with, without any effort, if you need anything else that perhaps roaddad hasn't provided, just let me know.
Cheers,
-Grant