I'm also here to get an idea too, although i'm currently earning $50 on referral for brexily exchange. Looks good and one also have to diversify income streams. I'll read this thread carefully.
That is a good reward but you didn't explain whether it is a weekly plan or whether how far you get people in as referrals. It can be fine if we also get to know because multiple ways of income is a good way in growing financially.