So I've had my series up on Amazon for about a year now. For the first and second book, they are only in two categories - the one's I designated. Well, actually, one I designated but the other doesn't show up, the "kindle books" one does. They are both only listed as Erotica.

But the third book has several categories. Romance, Gay Fiction, Etc, Etc and I have no clue how they got those categories!

So how do you get more categories listed if the max is 2?