Has anyone tried upgrading from C to F using United PlusPoints? Flying SFO-NRT in 'The Room' later this month but won't get a PlusPoints deposit until next week, so I cannot even see if this is an option; UAL has a page specific to request an ANA upgrade using PP. I tried submitting a MileagePlus upgrade form, but got the 'The traveler has the same name as an existing traveler on this flight.', which I've seen people encounter on EVA, etc. Itinerary booked on a United 016x ticket, D,Z fare buckets.