Thank you mom, very clearly and detailed explanation.Please pay attention to what you're reading. The spreadsheet describes two differed scenarios. The AOS petition can be rejected or denied due to early filing.
1. Package is rejected by the Chicago Lockbox. If this happens, the entire package is returned and you can re-file by simply sending back your package ensuring it arrives on or after the first day of the month your CN is current.
2. Package is accepted by the Chicago Lockbox, processed and the I-485 gets sent to the FO for adjudication. The FO denies the petition due to early filing. Your package isn't sent back at this point in time, your payment has already been cashed. So all you'll be getting is a decision notice.
From I have read, the critical point to know whether the FO accept the petition or not is to receive NOA. Once the applicant receive the NOA, that means AOS package has been accepted by FO, is this correct? Can I use NOA to indicate a successful AOS submission result?