SFO-PVG-SGN-SFO illegal routing?
Last November, I had an award trip using 60000 United miles doing SFO-PVG-SGN-SFO. Today I called to book the same itinerary and the agent told me that PVG is an illegal routing. I called again and was told that I can only have a stopover in HKG or NRT.
Any suggestion on how I can book this trip with 60000 miles?
Thank you!