But the first 10,000 new sign ups get a choice of 2 game packs, the adult pack being the more enticing, Alpha Protocol, Condemned etc
Be aware they check through 192.com.. which means you have to be in the UK, sometimes the information is not correctly synched, but persevere and try your town or region in the Town box.
But yeah most CD-Key and digital distributors do look up their new signees just to make sure they are who they say they are and to prevent fraudulent transactions.
I had done mine and it said no, so did my mothers and it was accepted. Kinda weird.
I won't use them anyway, some prices for titles is far too high, some are reasonable, like the Witcher 2 for £24.99 which is not bad. But then you see some older titles at £40 it makes you laugh :P