Board Thread:Love Live! School Idol Festival Lounge/@comment-26181685-20150308062904/@comment-11148831-20150309114821

So did you take a look at the link Mirage sent?

If you still haven't solved your problem, then you can mail kLab about it. For an account recovery email, just write "スクフェスアカウントリカバリー" or something. :)