I have send my N400 via FEDEX , delivered last week , also attach the e-notification form, send cashier Checks for each family member. I did read that they should be notifying me via text/email once the application get accepted(Time duration on e-notification form is 2 business days). so how do find my SR number to follow and do I wait for one more week before calling national center, will they be able to find my application number...please advise