Aon Associate Director interview questions

Received an invite to do a digital interview via Montage. The invite appeared to come from a person, but I sent a couple follow up emails to that address and never received a response. Although the interview questions were not too bad, I put a lot of thought and time into the responses only to never hear back from anyone. There was no kind of acknowledgement at all. Feels like I wasted my time. Not even sure if anyone even viewed the interview.