Tonx
I'm sure you owuld have been sent a notice to pursue funds through a collection agency by Macquarie if it was the other way around by now.
Now if the amount is worth the expense then if I were you I would speak to your solicitor and ask him give them a friendly freminder of their obligations under the fair trading act. An alternative would be to contact the ACCC. They would have received a large part of the funds for Northcote's bowls sale by now or pretty close to it so I would suggest that you also ask you solicitor to request interest due for four months delay.