I have contacted CS and they are arranging for an exchange for a white one but it sounds like there may be issues with the white ones too. The rubber on/off panel on my lavender one had black marks on it as well as the bubbling/pitting in the lavender finish.
I saw a presentation where they said that the coloured versions were only available at QVC when it was too late to cancel my order for the lavender as I have learned to be wary of anything that is 'special' for QVC, so I am not totally surprised that there is a problem. It is disappointing to hear that the white ones might also have problems - I wonder if they are also made on a production run just for QVC.
All in all I am not very happy that for such an expensive item, I am having to faff around returning it and now hearing that others have had similar problems, I do wonder if the good deal QVC had on the price might have come at the cost of some corners being cut in the quality of the product.