Originally Posted by
decillion
How can I upgrade these tickets? I understand there's a bidding system... how does that work exactly? Do I have to keep checking for saver availability? When does Aer Lingus usually do that? And is this all different because I booked through BA?
The bidding system isn't offered to tickets booked via Travel Agent/3rd Parties AFAIK. You will have an EI booking reference (it starts with 2) within the Avios booking receipt, put that into manage my booking on aerlingus.com. I don't think you'll see the bid to upgrade button.
The slightly better news is that you can upgrade Avios tickets, by paying a £35 change fee and the difference in Avios and Surcharges. To do this there must be seats available in Business class, however - which may be the pinch point.