Just to let you know we are still looking into this. The problem has been identified and we're working on a fix.
Thank you to everyone who is helping with the workaround of being invited by a friend - you guys rock!
- Andy -
Thanks everyone for the posts, and sorry for any frustration caused while this was worked on.
Thanks David, not sure what went wrong but everything seems good again. The battle is on! Love my Titanfall!!!!