Enter promocode upon deposit
If promocode is valid you'll see a green sign and the bonus amount that will be debited to your bonus account.
Check available bonuses in profile tab
Pressing "Terms and conditions" will show full bonus information.
Select bonus balance
Use button in the top right corner of the screen, to switch to bonus balance. Note that changing balance is impossible while in slots.
Check wager in profile tab
Wager scale will show how many qualifying bets were made and required bets remaining for full wager completion.
Transfer funds to real balance
As soon as wager is completed "transfer" button will become active. Pressing it will transfer all remaining bonus balance to your main account.

Enjoy higher wins