Don't phone, no one will assist you

I am looking for a part on a Bell machine. I phoned on Friday but no one answered the phone. Not at Jetpark, Bloemfontein or Wolmaransstad. Yesterday,I phoned four times and all four times after four minutes of the phone ringing no one of the sales team answered the phone. The Sales Secretary, Susan, sent a e mail to all of them to phone me back. No one phoned me back. Today when I phoned them. The same story, so I asked Susan to put me through to their head office (Richards Bay) so I could launch a complaint. Ha ha they didn't anser. So here I am. This is unacceptable for such a large international company.