ouch 2007 polo prangs

a girl i know has got into a few prangs recently, one in a car park and she doesnt know what happened! while cornering. and other some tit went up her back end and scratched up the rear bumper.

rear bumper will be easy scrap yard jobby, as it the passenger door, (if anyone has a black one being sold... let me know, good money offered )

just wondering how much this dent will potentially cost. i have guessed at 300£ take a look for yourself.

any recommendations on polo body work in S.London, (dont mind travelling a little bit, but she works 9-5 weekdays so is a bit hard)

cheers guys :)