A few days ago I woke up to my account suddenly being blocked, so I contacted their support. This was their response:
https://i.ibb.co/8dVrqxR/sat.pngThat is where the discussion ended and I still don't know what their exact problem is. I have definitely not cheated with referrals.
I want to be honest: Yes, I am pissed, but overall this is a good site, they pay high and quickly.
However, I am also here to warn you: Do not invest anything at Satoshi Hero/Monster, do not refer other users and always withdraw as soon as you reach the minimum threshold, because your account might get blocked out of the blue for no good reason.