United has been desperately trying to avoid handing out refunds.
Previously they tried saying that your flight schedule would need to change by 25 or more hours to get a refund, but their lawyers told them that policy wouldn’t stand up in court.
Now United writes that if your international flight schedule changes by more than 6 hours you can only get a travel credit valid for 12 months from the time of original purchase. At the end of the 12 months you can then ask United for a cash refund if you haven’t used the travel credit.
This policy also applies if you need to cancel due to government quarantine policies.
If you HUCA or ask for a manager you may have better luck, but United is trying to conserve cash in any way they can at this point.
Still, this policy is not a good look for them, nor does it inspire confidence in United doing the right thing.