225 Cabin filter trim panel - securing clip part number

As per the title really - i replaced my cabin filter a while back, and the white clip that holds the trim panel in place has snapped in half. I tried removing the remaining bit (still screwed on to the car) and snapped that off too (as it was help on by a screw from the rear). although i can glue the screwed bit back in, the clip is not capable of being glued (I've tried...) so i need a new one.

It's the white clip in the centre of the photo (not mine....as mine is snapped )

Can anyone tell me the part number for it, otherwise its a trip to the Stealers for another one....!

** Just to add - I've read 667374f off the actual part, but it doesn't bring up a great deal on the great Google...**