Originally Posted by
nic14691
I also had problems the other way round. Was flying FRA-LHR in J and the lounge dragon in the CX lounge said I had no access since BA uses the JL lounge in FRA.
There's a difference between lounge access due to a premium cabin ticket and lounge access via alliance status. Some airlines send their premium cabin passengers to a specific lounge, while alliance elites have their choice of lounge according to alliance rules.