Originally Posted by
j2simpso
.... Here's an example of one such configuration per ExpertFlyer
that is the 3-class pmuA 772 -- it is being retrofitted and unlikely by the end of the year will still be in service, and very few are still operating
Originally Posted by
j2simpso
Is it possible for OP to use some instrument (i.e. points) to pay for the E+ upgrade?
No
Originally Posted by
j2simpso
Is it possible to cancel the upgrade to Premium Plus if OP doesn't actually get the Polaris upgrade (and receive a refund on the points)? ...
Yes (but was not the OPs question)
To downgrade a confirmed upgrade requires the original fare class to still be available or you can do at the gate (with a poor choice of seats) And there will be $125 mileage redeposit fee and adding in the E+ access fee, the cost for the E+ seat would exceed the present cost of the superior PP seat
Originally Posted by
j2simpso
If OP secures an E+ seat now and his upgrade to Polaris clears, can he receive a refund on the cost (i.e. points) of the E+ seat they're no longer using?
Yes, standard UA policy to refund E+ fees if upgraded (except for CPU)