That is puzzling. Did you hear back from them after you submitted additional documents?Well, my interview was pretty frustrating. The agent was polite and professional, but they requested additional documentation that I actually live in Canada. I have very few border crossings, all to the US, so my passport is devoid of stamps. I am hundreds of days over the residency threshold so the whole thing is puzzling.
I am expecting a long wait for my citizenship at this point and I am trying not to take it personally.