I chewed up the alloy on my old 330d too rather frustratingly so took it to my dealer who did a fantastic job just like that!
You'll be pleased to know that for the next year I owned it, the repair remained absolutely perfect and you'd never know!!
2006 BMW E60 520d SE 6MT
2009 BMW E90-LCI 330d SE 6MT
Current: 2012 F30 328i Luxury 8AT
2015 Audi A6 Avant Ultra, Black Edition (sorry!)