Moderator, Iberia Airlines, Airport Lounges, and Ambassador, British Airways Executive Club
Join Date: Feb 2010
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Posts: 63,811
There was a more detailed thread on this last week, but in essence BA can't see the seats and Aer Lingus can't see the reservation, so you are a bit stuck there. If all else fails, they are very happy to help in the GC lounges. Unfortunately that probably doesn't extend to the BA Lounge LGW.