I have already contacted Gates for some advice. I did order the Novus kit, so hopefully I will fix my problems. I will keep you informed.
Thanks for the replied so fare.
Post up a photo if you can of the port but if it is not scratched you should be able to restore it with the Novus but if that does not work well enough you will need some very fine sandpaper, something like 8000-12000 grit paper and then apply the Novus.