Thanks to all for posting on this thread. I certainly learned a lot and was armed with facts as I awaited a call back regarding my ANZ flight getting cancelled and possible resolution/refund.
We booked roundtrip flights from LAX-LHR-GVA last October to visit family departing on May 13 and return May 27. We almost never use online TAs since we prefer to deal directly with the airlines. But, in this case, ANZ couldn't book the Swiss Air portion of the flight when I called them directly. So, we used Priceline. When the COVID-19 situation exploded, I feared we might be screwed with the airfare - especially using Priceline.
I've been following this thread as I have waited to hear from ANZ, or my online TA in this case since we had booked our ANZ/Swiss Air flight through an online TA this time around. I was expecting not hear anything until closer to the flight. But, much to my surprise Priceline reached out to me to call them telling me they needed speak to me about my flights being cancelled and what my options would be. While waiting for a call back from Priceline, I armed myself with the info from this thread including verbiage from the original Contract of Carriage when we bought the ticket and the recent letter from the US DOT regarding cancelled flights and refunds. Much to my surprise, I was immediately offered a full refund for both tickets minus a small US$10 processing fee. We did purchase upgraded seats directly through ANZ. So, I will need to pursue that refund with them.
I really do feel for the airlines this whole mess. I guess I don't blame them for trying to get people to take a credit. In our case, it would have been a loss. My wife is starting a college program in June and will be unable to travel until late June 2021. Plus, ANZ is apparently discontinuing the LAX-LHR route at the end October, 2020.
Good luck to all getting the resolution that you desire.