Thanks for the suggestion. I tied the Finnair MMB and it has more information than anywhere on the QF site including breaking down the taxes, but the Grand Total is "IT Fare" which is apparently something to do with a package fare, which is not what I purchased. I purchased a bundle of rights for two return flight for two people, and nothing else. I have given up as the QF Call Centre has no idea and getting through to Hobart is now a lottery for WP. If the ATO ever check the travel tax invoice, I have handwritten in the fare component on the hard copy and cross referenced it to the credit card entry.