How true is neoBux rental referrals

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I wonder if any of you here had comments or thought about Rental referrals clicking their ads in correct way or something that this people are really clicking everyday? Because I noticed that I did bought 20 Rental Referrals when I just started they are clicking very well then after 7 days I bought 50 more . The problem after I bought these 50 RR suddenly the 20 RR reduces their clicking by 50% then so I got something going on in Neobux, looks like there is a software they are using for RR to click ads. Correct me if I'm wrong i want to make some one to verify this imagination I'm thinking of?