I susupect that the discrepancy in numbers between those ballotted and those voting against can be accounted for in the numbers that have resigned from the union. I received a ballot paper despite resigning some months ago. Bassa is somewhat optimistic to think they still have 7000+ members after the last few months, they've been voting with their feet but the BASSA records have not been updated.
And if true, the chances of BASSA being able to do another ballot that will stand up in court are shot to pieces.