Question about PO freerolls

So I am new and have been getting points to do some freerolls. Looking at the list on Carbon, there is a freeroll that starts in 5 minutes, but no one is signed up. Looking in the info window, I see it has a min. req of 10 people. So what happens if I sign up for this tournament, and it gets cancelled. Am I SoL or do I get my points refunded for another tournament?

I searched a the forums but couldn't find this discussed about anywhere.

Also, anyone have a link on signing up (a guide) for PO tournaments. It looks straight forward, but just haven't done it yet. Curious if there is a delay I have to be worried about or what not.

thanks.