Several times recently when I have looked into open jaws on F9(.com), I couldn't figure out how to move the flights from Economy to Classic or Classic Plus. At least once I just booked as two One Ways, as the price was about the same. Am I missing some option, etc.? Or can the website just not handle the additional classes? And if I book in Economy on F9.com or another website like AAA.com, are they reasonable about changing the tics to Classic or Classic Plus by phone (and not charging the phone ticketing fee)? Thanks.