Also got a call and when I answered they hung up. I called back but got a message, 'Optus advisers that the number you have dialled is incomplete or incorrect, please check the number blah blah blah!

received call but didnt say anything

This number called and when I answered they hung up

I also got a call that when answered they hang up.

Not Fred Stone the Ugg Boot legend?

I got a call but it went unanswered At the time. Tried to call back shortly after the call and got the message "Optus wishes to advise that this number is disconnected."

Looking for Telstra customers