.game usually applies a 30x rollover wagering requirement, so you can see how much more you need to complete.
To be honest, it is difficult to convert the bonus balance claimed from the email into the main balance, and so far no one has been able to do so.
This is a common requirement in casinos, when withdrawal any free money.
Because that money which came from bonuses is meant to be played a lot. So it is a fair rule