What does it mean "simultaneous withdrawals" ?
It means you tried to withdraw from 17 of your 122 accounts at the same time. That was a very basic error for an abuser to make because it sticks out like a sore thumb when I'm reviewing the blocked payouts.
Our IT team invested about 2k USD (in BTC on June-July 2021) to freebitco.in
lol. Your IT team only has one laptop and every hour they each log in to their accounts do a free roll and then log out and pass it to the next member of the team to do the same. There isn't enough time for that to happen between these free rolls. We digitally fingerprint you so we know for a fact that it's the same instance of the same program running on the same device. Not faking different fingerprints was another very basic error of yours.