I can confirm that I received the bonus balance earlier today worth $10 and this bonus comes with 20x wagering requirement.
A bit confused earlier because I did not know about it but find it eventually under the reward tab, good thing is that there is a progress bar for the wagering requirement.

Hopefully I can complete it and try the withdrawal system without deposit

although it is not easy to complete it but I managed to turn the bonus balance to $30 now.
Is there any maximum withdrawal limit from this bonus balance once I can complete the wagering requirement?