Bumper Cover u-clip

In trying to get my bumper cover off to replace it because the adjuster was seized I broke this little green clip off and am now kind of stuck getting it back on. So far I’ve tried a few generic u-clips from Advanced Auto that won’t fit right and I just got off the phone with an Audi dealer who is telling me I have to buy the whole rad support to get that clip sigh

Any of you guys have any suggestions? I’ve googled a ton and this little piece is proving to be quite elusive.

http://audirevolution.net/addons/albums/images/195704873.png