The minimum withdrawal amount allowed is £10.
Your funds may still be in the bonus balance as you have not yet fulfilled a Wagering Requirement. For further details about what a Wagering Requirement is click here.
To see how much you need to wager before releasing funds to your Cash balance click here.
If you see a withdrawal failed message or status, please contact customer support by clicking the 'Help' button in the bottom right of the browser and a member of the friendly support team will be happy to help.