They knew my name and said they were from the Australian Bureau of Statistics, asked me if I was aged between 25-55 and when I asked if they should already know that they hung up.

Caller: No idea

Asked me to confirm my name, then said 'f**k you'... definitely blocked!!

They phoned on 24 September 2021 and left no message. They then rang on 1 October 2021 and accidentally left a message, which was just lots of chatting/background noise not anyone actually speaking into the phone.

saying they are from abs when challeged on why they are calling they hang up when call the number back it says its not in use