Originally Posted by
WineCountryUA
The initial credit can only be used for yourself but if there is any reminding credit, that credit can be used for anyone. However the second ticket would have to be purchased after the first ticket.
Right; it reuses the existing PNR, and you can't add a traveler to an existing PNR.
Two options: 1 - if you ask UA, you may find an agent willing to re-issue the entire amount as an ETC, which you could then use toward a new PNR -- if you explain your reasoning, you may get some sympathy; 2 - What privileges are you interested in? UA has a track record of offering some benefits (e.g., E+ seating) to companions even if they're on a separate PNR.