Hi there, SalesMeter.

I understand how important it is to connect your bank account to QuickBooks Online and download automatic bank feeds. At the moment Great Southern Bank and CUA are no longer supporting standard bank feed connections. We received confirmation from the AU Financial Partnership team that these financial institutions are no longer supporting standard bank feed connections.

Due to circumstances outside our control, these financial institutions will no longer be available to be connected through QuickBooks.

In the meantime, you can manually your transactions using a CSV file upload. For reference you can check this link for more information about What to do when your bank no longer supports your bank feeds in QuickBooks Online. 

Feel free to post again in the Community if you have other questions.