The Mudkip Middle Evolution

The only way to get this code was to sign up at Pokemon.com via your email, right? Because they email you the code. But it seemed like almost everyone got Gleyley. I don't know anybody who got Mega Stilix. Why am I fighting a Zubat and the Devil? And I also fought a Puccina that I fought. The Mudkip Middle Evolution is in the middle of Nachviko's path.