Each petitioner gets a separate/individual receipt number, including separate receipt numbers for EAD/AP if those petitions were included in the AOS package.
We also were able to confirm with the bank today, that both our checks were cashed on November 6. Yet we haven't received any text or e-mail notifications, and as I said before they weren't even able to find my husband's receipt number, which is strange I think.
Do you know if we should get also two separate NOA Letters in the mail? Or is it usually one for the family? They said they've sent mine.