We included the letter to withdraw our K1 application (filed on 2020, approved 2021) with our AOS (from B1/B2) packet, sent to USCIS.
Online account still indicates that the K1 is approved, and status is still at NVC. Is there is any way to verify if our petition has been properly withdrawn?
For reference, despite having this, our AOS case is still being processed (received notices, RFEs, biometrics)