Have you actually flown trip yet and gotten credit yet? KL has been selling W/S/A fares for PE seats on DL/AF metal for awhile now (even though they only recently have been deploying their own equipment with PE cabin) as they have shifted these fare classes from economy to PE fare usage. Yes, DL still has not bothered to update online chart for KL to reflect this. They are the same fare classes used by AF for PE cabin. Not sure if there have been any reports yet, but these should credit like AF W/S/A PE fares.