ours is pretty wrong about that, too. They have them separated not by labeled cups, but by top shelf/bottom shelf logic. They're in divided 1/2 gallon boxes with no labels on the exact box. DUMB. I found at least three females on the male shelf. At least one male on the female shelf. One "female" that I couldn't believe was female from her finnage... but I could be wrong.
Then, last week, I was there and they had four king betta females tucked way behind all the others. They were HUGE. Like, 2" plus fins. Well, they had them labeled as female. I didn't note the egg spots as the kids were climbing out of the cart to see the pretty fishies. They could have been male.
And one of the female boxes had a slipped divider and both females were in one half. One was missing a huge chunk of tail. So I took it apart and redivided them. What else could I do?