I got like 5-8 invisible referrals but im still with 4 only  hope  they will fix this soon.

No minimum withdraw,no withdraw button in FAQ it says the same thing Your share of the mined block depends on your mining power. Mining power is measured in GigaHash per second (Gh/s). Your mining power in relation to the pool power (the cumulative power of all users) defines which share of a mined block you get. When I click how to withdraw
It seems like a scam,nothing else