Hmm that sounds fair but 15 is a better level since leveling is ez in early stages it would increase spam or we could set a rule like u can't get rc after u have earned 1k rc from only referrals then in 2-3 months that rc counter would reset so u could refer for rc again but in the downtime when your waiting for the rc reward counter to reset you can only get a 500carat coupon for each referral