Medlin Communications interview questions

Received request for Interview 2 executives from Medlin Inc. We met on Microsoft Teams. They liked my experience. The next day I received another Microsoft Teams meeting request. I was giving the comp plan. Position was sales. I asked are you offering me the job? Answer from Trevor COO, yes. We agreed on salary. Start date which was 2 weeks out. Last word from Trevor was welcome aboard. I am sending offer letter today. Then, I never heard from Trevor or anyone from the company again. GHOSTED!!!