My referral rank

So here is my referrals stats as of now, I'd like to make silver in the next few weeks!

Your Referral Rank:	Bronze
Active US referrals:	14
Total First Level Referrals (20%):	52
Total Second Level Referrals (10%):	4
Rewardza First Level Referrals (20%):	0
Rewardza Second Level Referrals (10%):	0
Payment Date:	15th