Hi All, I have a foreign PhD in Engineering and have been working with a federal agency as a research fellow. I submitted my I-140 to Texas Service Center under EB-2 NIW. I mailed my package by Fedex on March 24th. The application package was delivered on Monday, March 28th. I have not recieved an email confirmation from USCIS even though I also submitted a form G-1145. Aren't they supposed to send an email acceptance notification within 24 hours? Am I missing something? What are the next steps?