Got contacted by a booking.com direct employee via LinkedIn. Answered promptly and was invited to an intro call. First call was the usual questions about work experience and own questions. Second call was scheduled to happen same day, but was postponed 20 min after it should have take place. This - the second appointment for the second call - never happened, without any explanation. A prime example of an HR department stating to look for "high potentials" but so full of themselves, that they may as well waste theses potentials time.