Re: If someone votes at two different polling places within their electorate, and places their formal vote in the ballot box at each polling place, their vote is counted.
It's a complete furphy, there in no way the AEC will allow this and it is committing electoral fraud. That's why we're always asked at the polling station if we had voted before in any election (or referendum).
The AEC’s “Enrolment Fraud and Multiple Voting” document quotes the Referendum Act which states that a person is guilty of a criminal offence if they intentionally vote more than once in the same referendum. The penalty is 6 months imprisonment for each illegal vote.
https://www.aec.gov.au/About_AEC/Pub...ple-voting.htm