It's 20,000 BP at the Battle Frontier, you just went to the wrong building. Go up from the pokecenter and go into the first building on the left. The person you want to talk to is the one in the middle facing you as you enter.
With the abundance of Pikachu clones in the existing Pokemon universe, which is your favorite, and why?
In my opinion, Plusle is the best Pikachu clone because it seems like it would have a very positive attitude (get it?).