Looking at the image shared by ryzaadit after your post, I guess this $5 exclusive bonus started by duelbits this year. So perhaps this bonus is for those who have good activity since the beginning of 2022. I've stopped wagering since last year and I have never received this $5 bonus, means that you are not the only one . I'm not complaining obviously as I realize that I'm so inactive for too long time in duelbits regardless how this bonus works. Maybe you will get similar bonus if you start to be active again in duelbits in the near future.