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Well that's good, but I don't know what's the issue but I can't seem to actually use the bonus , I don't know if there is some kind of thing that I need to do before activating it because I have tried using it on the casino games, slot even the life but nothing seems to be working, it's showing my balance is empty or do I need to make atleast a deposit first?
Have you switched the balance to use before opening a game? Click on your balance and choose the bonus balance before you play.
This is what I think because you said that your balance is empty which mean you are using your real balance which you have nothing on your real balance.
No need to make a deposit, simply do as what I suggest and you'll be able to use the bonus balance to play casino games.
But if you have chosen the bonus balance but your balance is still empty, there is only support who can answer about what happens.