MediaMath Media Partnerships Associate interview questions

One phone interview, 30 minutes long. Was asked to complete an analytic exercise regarding ad impression estimations. Came in for in-person which consisted of meeting with different 4 people. Everyone was nice, though some of the interview questions seemed pointless. I was told 2 weeks to hear back. A full month later, I emailed them because they had not been in contact. They did not reply. I'm utterly disappointed in that level of unprofessionalism. Interesting company, nice enough people (who boast 'honesty'/'transparency' as a company-wide value) yet lack honesty or transparency.