I'm NW plat and on a direct flight with a companion. I read on the CO forum that sometimes the agents can split the segments and make the direct flight a connnecting one. So, I emailed NWA asking to split the segments. I then get an email back: the agent split the companion off my reservation, so now he is not eligible for the confirmed companion upgrade at the 5-day window... any advice? - chances at the gate are slim to none on this itinerary.

What can I do to get this fixed?

Thanks!