I called back number (02) 9137 2086 reached voice mail but did not say for what company.

Phone twice by these guys but no answer sounds dodgy.

Got a phone call from this number. Did not leave a voicemail. When I rang back it was a voice message and did not say the company they were calling from.

Prank psychopath

is this a spam caller?

they called, I answered but they wouldn't respond very dodgy