請問PJiang及各位專家關於receipt number? 我的公民申請是寄到Texas Service Center,可是收到的receipt number starting with NBC* (from National Benefits Center, not TSC)。不知道公民申請都是從NBC,還是有的是NBC,有的是TSC?以你的經驗,NBC and TSC那個會快一點呢?謝謝!