I got through to second stage of interviews, which necessitated taking time off work to visit the head office and deliver a presentation. I was informed that I would receive feedback by the end of that week. However, I have not received any form of feedback via phone call or email. I followed up with an email, which has been ignored. While I understand that everyone is busy, some acknowledgment would have been appreciated, even if it was just to inform me that I was unsuccessful. I found this lack of communication to be very unprofessional, especially from such a large company.