Originally Posted by
alserire
they arrived in LHR this afternoon, having flown J class out and back to London, they were refused use of the BA lounge because their flight to DUB was in Y.
Terrible experience, but the above point is actually just the rules. You are only permitted to access a lounge based on your inbound flight if that flight is in First Class, otherwise it's based on your class of travel, so they were in Y to Dublin and were not permitted to use the lounge . This is the correct interpretation of the rules, so you can remove it from your list of bad things, because almost every airline operates the same way.