I have a Qoinpro account and I created it back in 2014, that is, if I remember it correctly. Since then, I never tried to open or take a peek at it, but only yesterday. Do you know how much I have there in my BTC balance now? Only 0.00003383 BTC. Imagine that is almost 3 years ago and up till now, it merely accumulated to that amount even when I had 16 referrals there.
Not a recommendable site if you ask me.