I-140/I-485 concurrently filed to NSC on 11/04/2006, so far no any receipt/check not been cashed. Just called NSC, a person told me that they checked their system, no record at all. He gave me a fax number (1-402-219-6171) to ask my employer to state this situation. But I really did not know how much help we can gain from it? Anyone has such tough experience?
Another question: my employer plan to re-sumbit everything if no response in the future. However, the difficulty thing is that we have enclosed every original document in the previous mail package (LC approval letter, Medical Exam, Notarized document, photos...), how should we resend the application with those 'missing' original document?
An update, one of my friend also I-140/I-485 in the middle of November, she received I-485 receipt, but no I-140 receipt. Still luck than mine.