FOIA request denied

I had submitted 2 FOIA requests in the past 6 months.

The first request was for my complete file, which was returned heavily redacted (around 90%).

My second FOIA request was denied even though I submitted it through my logged-in account using the same process as my first request.

The second request specifically asked for documentation related to an interview I attended six months ago that was later canceled. (Yes, that is right, I attended an interview 6 months that later on showed as cancelled)

What baffles me the most is that, while searching for similar situations, I came across a post here on Reddit [Ghosted on my FOIA : r/USCIS](https://www.reddit.com/r/USCIS/comments/1qbaw2n/ghosted_on_my_foia/) where someone claimed that a whistleblower alleged that United States Citizenship and Immigration Services has been denying FOIA requests over extremely minor technicalities to avoid producing records.