Might need to get in touch with every one, as i didnt get alerted to the fact there was an approval email until i came here. Which is likely the reason you still have 12 outstanding.
I left comments on their assets pages yesterday(or maybe the day before) to remind them. I think at this point it's just a matter of waiting for them to login. If i ever do another bundle i think i'll add custom fields for more contact information.