Yes, provided you've completed any associated wagering requirements and met any of the other terms and conditions attached to bonus spins or free spins, you'll be able to withdraw your winnings. However, if you manage a large win from bonus spins or free spins, you may need to wait slightly longer for your withdrawal to be processed. This is common practice when claiming bonuses at online casinos - especially free spins and bonus spins - and the casino simply needs to carry out a few extra checks.