We have heard from a few of you that you did receive your invitation after signing up for the Paramore Fan Club. If you haven’t already, please check the junk mail folder on the e-mail account used to purchase your membership. If you still have not received it, please contact firstname.lastname@example.org for assistance.
UPDATE 3/27/13 - ICYMI Here's the latest update from PFC.com,
"Important note for paramorefanclub.com members
Almost a year ago we decided that we wanted to make some needed changes to our fan club and at that point we decided to stop accepting new members. We wanted to offer a new, updated experience for our fans. We then started to play around with the idea of a singles club to release some new music we had. That was a lot of fun for us and allowed us to test out a few ideas we were building for our community at Paramore.net.But that wasn't the perfect solution either.So we've been working on combining all this into one place and we look forward to showing you what we've come up with. Over the next couple months - we will start inviting certain members to our new site to get your feedback. We want to make it really special for everyone. So keep an eye out for your invitation.- The Paramore Crew"