There were three interviews of 45 minutes. The final interview was a 10 minute presentation followed by interview. I was told at the end of the 3rd interview that it would be a few weeks before I heard something. About three weeks later I was contacted by recruiter apologising for the delay and they hoped to update me soon. 8 weeks have passed since that email. Not to be offered a job is, of course, reasonable if you're not the right candidate but to not receive any type of correspondence is completely unsatisfactory.