Computer generated Spoofed Number - claiming to be "Nicole from NBN (National Broadband Network)" - re disconnection etc. - These crooks are trying to get money off you or at the very least various personal information which they might use to fool you into thinking they are legitimate for some other Scam, Later down the track - DO NOT GIVE OUT ANY PERSONAL DETAILS OR BANK DETAILS.
They will try other phone numbers too - I also got called on (07) 5569 0341 and got the same message less than 2 hours later.