J G Miller wrote:
On Wednesday, August 4th, 2010 at 12:43:16h +0100, Albert Ross wrote:
AFAIK no law, but they can choose not to.

In fact under the laws of England and Wales, there is no requirement for
a retailer to sell any of their displayed goods to any individual or
company, except maybe if discrimination is on the basis of that which
has been legislated to be illegal.

Indeed.
However there is a law that says if you display it at a given price, you
must honour that price if you sell at all

'90% off Rolls Royces' is fair, as long as you are always out of stock
when they call.