I called back number (02) 8049 0841 reached IVR for a company called Optus.
June 15, 2016
requested a callback from Optus. they called back on
April 18, 2017
this number. not spam.
When asking for a call back, you must ensure you stay on the line - it will automatically say its an answering service and try to hang up - press 1 to stay on the line.
May 18, 2017
Optus call back number that does not work. Received a call when requested a call back but no voice from other side when picked the phone. Called back the same number but no option to talk.
May 5, 2017