Withdrawals are processed weekly at 12pm UTC. Please note that requests are deducted from your balance immediately.
Withdrawals are free but we kindly ask you to be considerate with your withdrawals to help us save on transaction fees. It's also in your own self-interest to withdraw few larger amounts rather than many small ones. Otherwise you will accumulate many inputs and thus will generate a large transaction size when you transfer the Bitcoin to another address. Larger transactions require higher transaction fees. We have been online since September 2015 without any hacks or thefts and keep the majority of all funds in a cold wallet.
The minimum amount to withdraw is 4000 satoshis (0.00004000 Bitcoin).