Originally Posted by nonce

Actually didn't EY just sign an interline deal with JQ? So you could potentially buy a JQ flight from EY (and vice versa). In the case of a codeshare, as was the case with this flight (you are buying a seat on the JQ code which is operated by QF) the agreement is with JQ, not QF. JQ will make you aware that the flight is operated by another carrier (3K, JQ or QF) but you cannot buy a JQ seat on a QF flight and then think you have an agreement with QF, you have the agreement (and the ticket) with JQ. If JQ mess up (or even if QF mess up) you still have to go back to JQ to sort it out.

Later this year, I have a flight with QF which is a codeshare with Air North. If I want to change that flight, do I call QF or Air North? If I turn up for the flight and Air North say that QF havent paid them for my ticket and if I want to make my connecting flight with QF I will need to buy a new one, do I get grumpy with Air North or with QF?

This isn't a Qantas/ QantasLink arrangement where the two companies from a sales and marketing perspective are one and the same, this is an arms length commerical agreement. As a result it is not relevant that QF own JQ because unlike QF/ QF Link JQ is run as a standalone company. If JQ need to charter a plane, do you think QF provide this for free? Likewise ground staff, line maintance etc? So those who think the two companies are one and the same need to break this and realise that this is not the case and if you book with JQ, QF is not going to look after you (and v.v.). This is no different to any other codeshare arrangement that either QF or JQ have with any other airline.