Pure bastads man the scum of the earth people that do that , why can't people have a backbone and at least leave a number , ****e bags man , sorry for the rant but that kind of stuff gets to me as it's happened to me aswell years ago
Is this a mk7? got a complete unit in the shed, no longer needed gone to a mk8, all the gubbins there but the body is silver and the indicator strip has a hole in it, It can be stripped for the bits you need. Sorry mate got my marks mixed.
I feel for you mate, had the same happen to me a couple of times. Currently though on my 7th gen the mirrors fold fully inwards and outwards so while my mirror has been knocked so far hasn't broken. Hope you get it fixed easy enough.