He got out (a local taxi guy who I've hired before) rubbed off some damage (though there was some scratches to his paint) but thankfully the complete legend said that I was fine to go and he wouldn't want to put me through any insurance things) BUT. . .there is a (small) crack in my bumper which was freshly waxed and stuff so I'm depressed.
Can you get these cracks repaired at a body workshop, and then filled and smoothed etc or if I wanted to fix it would I need an entire new rear bumper?
Thanks a lot for any advice!

