Just seen this promo on everyonedoesit.com, and I read up on these seeds and they seem pretty good for freebies.
They are White Widow or Big Bud XXL by the ministry of cannabis.
But you do have to buy a pack of seeds first, but just pick something heavy from Barneys and you get these ones which aint half bad.
Pretty good, thought you might want to know buddy

Stay Lifted