If you want future help with your Safari, let me know. :)
EDIT: Someone did check and find two, but not your third. Try to connect with that person again but both be online. As long as you defeated Diantha and entered the Hall of Fame, anyone you're online with AT ANY TIME (from there on, forever) can then access your third plus any hidden abilities.
EDIT: Someone did check and find two, but not your third. Try to connect with that person again but both be online. As long as you defeated Diantha and entered the Hall of Fame, anyone you're online with AT ANY TIME (from there on, forever) can then access your third plus any hidden abilities.