When you've activated a bonus, you need to complete a trading turnover before you can make a withdrawal.
Upon completion of the trading turnover, you're free to withdraw funds from your real account without any constraints.
There's no defined time frame for the completion of this turnover. You can continue trading as usual and monitor your progression in the "Bonuses" section of the platform.
Additionally, if you haven't made any trades after the bonus was credited, you have the option to cancel it.