I don't know what's happening with the price boost, why is it some are getting it done while others are not.
For me, it's working all the time, I use it once a day on my NBA betting journey.
This problem should be fixed immediately, 10% price boost is already good, it could increase our winning if we are lucky enough.
They won large amounts, you didn't.
It is really that simple. This is not like a all everyone deal, it depends on some stuff that you need to hit as well and if you do not hit that you are not getting it. Also do not expect 10% boost all the time, if it was like all the time deal then they would just change the odds forever and instead of having 10% boost you would have a permanent odd change, which means the boost is basically a promotion and not a 100% guaranteed thing.
Hence, you should instead focus on the regular winnings and that way you will get the returns that you expected to begin with, if the 10% happens on top of that it would be great if it doesn't happen well you already played like it doesn't exist and that is it. Simple logic that applies everywhere, assume the worse and react to it, if better happens you will be happy, if worse happens you expect it.