I got a official
NHB black touch up pencil (PN: 08703 B 92 PHE). I just opened its like a nail polish brush. Wow the smell has some kick.
Thanks everyone I will have a go at the weekend. The dealer said its down to the primer so I will have a go with the pen.
It's a pain having to do this after only 4 weeks / 1200 miles
I love the car though. Still have to pinch myself when I see it parked in the driveway :P