Originally Posted by
crazeinc
... I was originally on different flight numbers TPE-NRT and NRT-SFO, and the upgrade only applied to NRT-SFO and when I asked if I could apply it to the TPE-NRT leg as well, she told me that was a separate upgrade. ....
assuming NRT was not a stopover and these were all UA metal flights then the mileage+copay upgrade for NRT-SFO is the same as TPE-NRT-SFO. The agent was wrong.