need help about neobux rented refferals

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Yesterday i purchase 20 rented referrals. I enable Autopay option. I notice 5 out of 20 rented referrals are click 4 ads daily & 15 referrals are not click anymore. I have no knowledge about proper use of rented referrals to increase my income...... Anyone suggest me how i proper use of rented referrals to increase my income. Please simply explane Autopay, Recycle option...... Thank you for your support