That was going to be my next step. But I wanted to find out policy and practice before I called, since you get different responses on the phone depending on whom you speak with. As an example, I looked into upgrading the domestic parts of the itinerary with 500-mile certs, and was told on the phone that I could not do so. Three days later, the webpage gave me the option to upgrade the domestic legs with certs.
GL, report back if you can what happens. There has been exceptions on crazy things due to the current travel climate.