I got my card from scan uk, because they a small retailer they probably wont give me a rebate, I would have got from amazon but they didnt have it listed.
By the way the UK situation is interesting, by law anyone who purchased a 970 in the uk should be entitled to a full credit if they wish to return the card, retailers however are waiting for nvidia to give the go ahead, as they dont want to take the hit, but the law is what it is.
The ASA in the uk (advertising regulator), works on the basis that not what is correct by dictionary definition but what is correct by market expectations, so the customer buying a 4 gig card will expect it to work the same way as other 4 gig cards such as the 980 and the amd cards. So the ASA if asked to intervene would very likely rule against the retailers and nvidia.