receiving multiple voice messages and they seem to be a recording.
Soon as I heard the robot voice I hung up and blocked the number

No msg left

Caller: ATO

Don't think this is a legitimate number

Caller: They claim to be Australian Taxation Office

This number claims to be The Australian Taxation Office and tries to get your private information. I suggest you give them a ring back and tell them what you think of their criminal act. After a few calls they do not seem to want to answer your call.