no I didn’t have to call. Was booked on BA to HKG from LHR in PE on Nov 29 and was trying to see if there are upgrade possibilities to J on that flight. I had a quick a look on ba.com if award flights were available in J for that flight. BA wasn’t available but there were 2 award seats in J on the CX LHR-HKG. That was 2 days before my flight. It was in fact the first time I have seen award availability with CX.