Can I get a invoice with Apple ABN for airport Tax returns?

If you mean an Australian Business Number (and I am not aware of any other business initialism) then this will be on the tax invoice you should have received by email at the time of your order.

You can sign in to the Apple Store and see your orders and click on a link at the top right of the page to see an "Invoice Receipt" but this does not have Apple's ABN on it. Neither does it have the GST component (which is what you are seeking to have refunded).

You might be able to ask Apple directly - and a reminder that this is a community of users, not Apple. You can find some contact phone numbers at Contact Apple for support and service - Apple Support or you could start a support request online at Apple Support.