Cheers for the advice guys, sorry for taking so long to reply! Im not aware of it having had a respray and it seems to be just the one part of the bumper. I'll try the autoglym polish first, if no luck, any idea how much I would be looking at to have the bumper re-sprayed, and would a good bodyshop do it without having to remove the bumper?
While Im thinking about it, anything anyone can recommend to protect the bumper against future stone chips etc?! A protective film or something?! Bodywork is not my strong point!
Cheers!