GE Engineering Manager interview questions

Was first contacted by GE corp recruiter (HR) who arranged interviews with hiring panel. All face to face interviews went well but when I followed up with the initial HR recruiter at GE Corp., she refused to take my calls or acknowledge any communication with me. I felt that the interviews went well, however obviously due to the lack of response I was not going to get an offer, but at least I felt that I should have gotten a reply to my follow up inquiries about the position. I had taken time away from my current employer to go for these 4 hour interviews, so at least General Electric could have acknowledged my efforts??!!