Recorded message - claims to be from NBN - warning that phone will be disconnected in 24 hours since NBN is now availlable in my area.
Suggests pressing 1 to be connected to technician - pressing 1 results in disconnection.
The problem here: NBN has been available in my area for years. Most people in my building are connected to it - except for those of us who are with TPG FTTB and didn't want to downgrade to NBN.