They reached out by LinkedIn, and we had a first call that lasted around 15 minutes and went great, it was a position for one of their clients. We scheduled a video call for the next day and nobody showed up. I waited 30 minutes, emailed the recruiter and to this day I got no answer. Please do better. I shouldn't explain this to a EMPLOYMENT AGENCY, but if you're not interested in the candidate anymore, a polite email saying that will prevent someone's time being wasted and hopes being crushed.