Bitcoin bonuses can't be withdraw
Bonuses have some requirements to follow to be able to withdraw it so its possible to withdraw it but you must fulfill the requirements first.
Exactly, Bonuses on any gambling site will have some requirement for sure, they are not here to give out free BTC. The aim of a casino is just one thing and that is to make money. I do like to be a part of a bonus as it helps to give some boost to you bankroll. I love Nitrogen's sportsbook bonus as they give you extra BTC to bet with once you have wagered a certain amount of BTC.