I tried to call back the number (03) 5298 3099 but the person who picked up the phone disconnected the call
Anonymous on 1800 089 619
Rude woman called demanded I give her access to Google Adwords account. Refused to clarify name....
I Called Back on (03) 8789 2800
I called back number (03) 8789 2800 reached voice mail but did not say for what company.
Anonymous on 0408 636 570
This is the Whois result of INSTAGRAM-SHARED.PW
Domain Name: INSTAGRAM-SHARED.PW
Anonymous on +61 6177872028
Says was calling from this place http://mediaedgeagency.com/ Very aggressive, kept calling back...
Anonymous on (07) 3452 9662
I did the same - I guess its scam/spam