Interview with 1) human resources, 2) interview with line manager, 3) final interview with dept director. Then they ghosted me as if we never spoke, and never got back to me whenever I solicited HR for some feedback. Amazing how such big companies will not give you ten seconds of their time to get back to you after you invested so much time in the preparation, interview, and then waiting to understand how it went. I would understand if it was just at step 0, when you have just sent your CV. However after so much talking, it is very disappointing.