New (?) terms in bold in partner airline section
I just noticed this and could not find any discussion about this topic :
Mileage accrual is subject to the rules of the United MileagePlus program and, as provided therein, mileage will be credited in accordance with the terms and conditions of the MileagePlus Program in effect at the time of travel, not at the time air travel is purchased, booked or reserved, and accordingly miles may not be awarded for some tickets or miles may be awarded in an amount fewer than shown.
It certainly makes planning trips for eqm a bit more of a gamble, when did terms change?