I ended up reporting play.com to the ASA before Christmas
Because of two misleading offers on their site which claimed, in one case, that they had goods on sale for much less than they actually were, and in another, that certain goods were on offer that turned out to be.
I did try and talk to play.com myself, but the customer service representative I spoke to was arrogant, rude, and unhelpful, and insisted that the advertising was not misleading and had already been cleared with the ASA - I now have a letter from the ASA which proves that she was lying through her teeth.
In any case, I ended up getting a much better deal from amazon.co.uk, which I received within 2 days of ordering, less than a week from Christmas, despite using their free super-saving delivery option and the goods being shipped from Jersey.