What's missing?

[whatstandwell]

Can anyone help identify the fastener I am missing from the plastic trim behind the throttle pedal? It attaches it through the hole to the footwell. I have been down to my local Audi garage and they can't find it on the parts CD...
It is a 2002 S3.

 

[whatstandwell]

If anyone could take a picture of the fastener in place, that would at least let me know what it looks like...? Thanks a lot.