Via the website, I un-requested the C+ upgrade, and then re-requested it. It cleared for me plus my non-status companion on the same PNR for 4 of the 5 flights within minutes. Not sure what's up with the first segment of the journey which didn't clear despite availability - it's several months away, but if it doesn't clear in the near future I'll probably call in.
Edit to say: This also made the price of the FCM offer go up by $40 per person each way.
Edit 2: After 10 minutes I tried the un-request re-request sequence again, and the 5th segment cleared to WU as well. Possibly rolled out to some of their servers but not others?
Last edited by kpbadger; Oct 11, 2016 at 3:13 pm