I have question about booking flights with miles. I was looking at booking BKK-HKG-SEOUL on Cathay as a partner redemption. I sent off an email to enquire how many miles id need for this and got a rather random reply " Please note that to be able to proceed, the ticket should be round trip, For example; it should be BKK-HKG-BKK .

Does that mean that I cannot book a one way miles flight through RJ?