My I-130 was received on Jun 8, 2017. I got my citizenship on November 21, 2018 and I mailed certificate same day to California processing center where case is in process. I did not hear back anything so I filed Inquiry for Dec 10, 2018 for undelivered notice. I got response saying: "Your request for an upgrade to USC has been forwarded to the adjudication officer. The adjudication officer will make the necessary upgrade at time of adjudication." I noticed in the response that they did not mention the receive date of naturalization certificate. I have not received any update after that case status still says that case was received on June 8, 2017. How long should I wait or is there a way to track the progress on the upgrade of petition?
Its been 18 months on the petition
Its been 7 weeks since certificate was mailed
Its been 4 weeks since i got response from USCIS for upgrade of application inquiry.