Any good free offers?

Any good free offers I can do for this cool site? I find it nice for only 3 referrals for 120 bucks! Wow! My friends will LOVE this site. Doesn't seem like a loss to spend a few bucks on credits, hell, ill even pay for my referrals credits P (Is that allowed?). Also what the average time for a referral to get passed or a credit to be passed?

Also, for the credits, when they say like 1/3 credit, that means I need 3 to get 1 full credit right?

One more thing, any offers that I dont need to put in payment or credit card information? I really don't like doing that with site's im only going to visit once.