@StuartO if you go to brave://rewards-internals does it show as active or does it say something like Rewards Not Created or whatever?
I know in the past, part of what we’d see your issue with were people using devices that didn’t pass SafetyNet. The only thing is I think that the test they used for that is now outdated and unable to be used. But I will at least ask, are you using a stock version of Android? Or are you doing something like a Custom OS or De-Googled version?
What I’ll also do is tag in @Evan123 to ask what it is we’re generally looking at when this issue is happening for people.