thx @avva! hummm ok, thats weird! did you try to hit that verify mail again? you should be able to signin once you confirmed it! really strange! :/
anyway, I only see the referrals that actually invest on them! but the 5Gh/s are free to everyone that signs up for the 1st time as they announce on their website! ;) so, if you see that it doesn't work, try with another email (with or without my referral link) to see if it works! :)