Originally Posted by
dxbtraveller
Op-up / comp-up does not get lounge access (I found this out when op-upped Y to J on my very first EK flight at LHR many years ago).
Are you sure about this? If you show up at the lounge with a J boarding pass, do they even have the capability to (and would they be inclined to) deny you entry because you didn't earn the J?
Only once have I been op-uped before the gate -- from C->F in Paris, but unfortunately there is no F lounge there to test the theory.