I have a roundtrip flight booked with miles on United in January. Each leg was 15K.
For business reasons, I want to change the return flight ZRH to EWR, to either MXP->EWR or TLV->EWR. My job has an office site in Lugano.
I think I need to change the second flight and then cancel this leg.
Will I get my 15K points back? Will my first flight EWR>AMS still be unchanged?