Voting in Queensland

We are Australian residents.  When we have been living in Australia for 4 years, we will be eligible to become Australian Citizens which will then enable us to vote. Voting is compulsory!  We have just received a 'Failure to Vote Notice' for a previous tenant of the property we're presently renting who appears to have forgotten to advise the Electoral Commission of his whereabouts and  who failed to vote in the Queensland State General Election in March this year.  If he is unable to come up with a valid reason for not voting: he faces a fine of $100!