Funds in loan accounts are usually not available for withdrawal, unless the redraw feature is available for the loan. This section therefore always shows a "N/A".
To see if you have available funds in your account, you can go to the "Redraw loan" section.
This page shows the amount paid in advance, which is the available fund for redraw.
You can also check the amount paid in advance from the "Account details" page for your loan.