When you click on the non-relic you get all of the options of color and fretboard. It's not a matter of making it clear. It's right there in front of you.
The point I'm trying to make is that I don't think the "fredboard" option is real. It's poor website design. I think only the pictured combinations are actually what are offered. That's why the seller is confused when the OP says he specified maple; the seller doesn't know the website is giving maple as an option. Of course, I may be completely wrong.
EDIT
I'll wager the only basses in inventory are the color combinations pictured; you really don't have a choice of "fredboard". Bad website design.