In your account overview your betting balance is divided into different sections:
Withdrawable funds - These funds are real money that can be paid out if no bonus is active.
Bonus funds - These are funds that are granted as a bonus for a deposit that was made. The amount is displayed as "bonus funds" until the participation conditions of the promotion have been fulfilled or the bonus funds have been used up. Withdrawals cannot be made while a bonus is active, you can check your progress under "My promotions". For more information on how deposit bonuses work, please refer to this article.
Free bets - The number of free bets on your account, their values may vary. To use a free bet, simply select it as the stake in your betslip. You can find your active free bets and their conditions in your account under "My promotions". For more information about free bets, please refer to this article.
When placing bets, please note that withdrawable funds are always used before bonus funds. It is not possible to select the funds type.