Originally Posted by
WannaTheater
My only guess is that since we were on BE tickets, perhaps these are treated with lower priority? Who knows…
According to the wikipost, complimentary upgrades are processed in the following order.
By elite status and then by:
1. Loyalty Points earned in prior 12 months at the time the upgrade is processed.
2. Booking class
3. Time of request
So, yes, Basic Economy matters.