A FlyerTalk Posting Legend
Join Date: Sep 2009
Location: Minneapolis: DL DM charter 2.3MM
Programs: A3*Gold, SPG Plat, HyattDiamond, MarriottPP, LHW exAccess, ICI, Raffles Amb, NW PE MM, TWA Gold MM
Posts: 100,399
Did the OP have a through fare in premium economy or could BA have sold a mixed class ticket, with CX fixing the error later? In fact, does BA have any premium economy fares that book into coach for flights operated by other carriers? It might help to know the fare code and booking classes, before and after the change.