I'm not a holder and have never been in this situation myself,...

I'm not a holder and have never been in this situation myself, but if you want answers, have you considered sending them your list of questions after you have banded a group of other shareholders together so that you can start off the letter with "I represent X number of shareholders who together own X% of the company".

I think if you could get above a certain percentage of shareholding together (10??? not sure) couldn't you band together to call an Extraordinary General Meeting where you seek the appointment of an independent non-executive director you nominate who looks out for the retail shareholders interests?

Have you contacted the Australian Shareholders Association as to whether they monitor BIG or have any advice?

There are other options besides waiting for management who created this mess or the new auditors and regulators who are now trying to unravel it.