I submitted an inquiry using this link and they replied “We approved your case and sent an Approval Notice to the most recent address we have on file. The U.S. Postal Service has not returned your Approval Notice to this office.
What You Can Do
For a duplicate approval notice, you must file a Form I-824, Application for Action on an Approved Application or Petition, with the applicable filing fee and original signature.”
i was wondering if i can find online what is the address they have on file to make sure it’s the recent one and also if they have a tracking number for the letter because I am filing a search request with USPS.