Smudger
I had exactly the same experience as yourselves with the big H, they couldn't find the code for Granite Sky so I posted on here and was given the Lexus part number from Chris Shipley ( He is the Man) and I have ordered the paint from Lexus Bracknell, it is due in on Friday, apparently you get a can of paint and a can of laquer all for £7.62+vat. (Cheaper than the big H as well.)
The part number I was given and have ordered is PZ448-C1C60-15
:D :D