How exactly is it determined who gets in?

[donati]

Hi all.

This will be my first post here

Can someone tell me how exactly how the organizer picks wich teams get to participate in the 24h race? I've heard that there are many more teams signing up, than there are places for in the event. I know that there are some sort of pre-qualifying session a few months before the race, i also heard rumors that the organizers sometimes exclude teams that they for some reason dont think have the potential to complete the race (financially weak teams?). But im unsure how exactly the rules are on the subject.
And a secondary question; the teams that end up not being allowed to join the race, will they get their entry-fee refunded (in part or total).
I've read about the 110% & 125% rules on the official site, but could'nt find anything else about the subject.
I'm in particular interested in the LMP 2 class, but suspect the rules are the same for all classes?.
How is it decided how many cars can participate in each class?

Mvh. Finn Donati