How long did it take before your cases were approved? I had the same thing happen to me, I showed up at my N-400 interview and was told I also had to interview for my i-751 which I did. They told me I was approved for both (even though my husband did not attend because I was not aware that it would be combo interview). I had my interview on August 11, 2023 and I have not heard anything since and it has now been 3 months. The officer interviewing me told me he did not have my paperwork for the i-751 on site so he could not stamp it for approval and had to wait for that paperwork. I have tried contacting UCSIS with no luck, they say I have to wait until March 2024 until I can ask about my case.