So, for ya'll that is having problems, open a Support ticket here:
http://freedom.support.tm
Usually, it doesn't take a week, so for those who joined a week ago, and haven't recieved the invitation, open a Support ticket. If you just joined yesterday or today, please wait for a few more days before sending a ticket. Before I got the invitation I think I waited 7-9 days, then when it wasn't there still, I opened up a support ticket, and I recieved the invite a couple days later.
Hope I helped!!