An agent ended up building the reservations for me, but when I was working on it myself I did have to do a multi-city search to add the excursionist perk for a leg in Europe. In which case I definitely need to get United to redeposit the miles for my unflown final segments.

I'm really wishing I'd let the agent I talked to around 4:30 AM cancel them for me. For some reason I thought it'd be a good idea to do that with the app. I foresee a long phone call soon when I explain that it was effectively impossible to cancel the legs before departure because their system was so backed up. Right now I've been on hold for MileagePlus baggage services for half an hour after waiting a whole hour to reach a non-members agent - an hour and a half so far to try and get reunited with our bags.