Hi, new to the forum. Appreciate this thread is a few years old but found it recently after I bought an EP3 and thought I'd update this for anyone in my position that has this issue with the door handle trims now. You can buy replacements for around £45 but thought I'd give a refurb to them and save a few quid. The colour spray paint required is called 'Vauxhall Silver Star' there are 2 other silver stars available named as II and III. I think they all have a slightly different shade but I bought the first one - Silver Star which is £6.49 from Halfrauds. Have to say I definitely made the right choice as the finish is spot on and you can't tell the difference with the other silver parts in the car. Just take your time and make sure you leave enough time between coats. I very lightly wet sanded the trim just before the final two coats and it looks great.