I used Visa with US address. It took about 4 days to ticket but over a weekend. FWIW, I called CX and asked them to make sure there were no issues with my CC, and they said everything was fine and not to worry. YMMV
BTW, I booked my repositioning award ticket about a month before I purchased my AONE3. I was waiting for the Yen/$ to get to 124 before purchasing. It looks like it has stabilized at around 120 now.