Thanks Guys, I will follow Pete's advice, but good to know that Halford Appliance White is the one to use just in case...
T-Cut all the way, then when it's done T-Cut again, then polish up (not wit T-Cut) but with Novus 1.
FBJ, a picture would be lost as it's only a small area that is affected and to tell you the truth, one will not be able to tell on the photo anyway... however thanks for your advice guys....
This place Rocks!