It'd be nice if the referral message on the middle box be cleared up. It should say, "The referral amount should be credited when the user pays for their first bill on any paid plan, irrespective of the bill amount." This should be cleared up because it could misinform people who think that reference to billing, could even apply to the free plan since it has $5 allocated to use freely. Also it'd be nice if it stated if they were replenished back to the amount referred once a month, or not.