Originally Posted by
wildeyofatime
You're correct, my outbound flight was A and my return was W, both credited as economy/discounted economy. There are duplicate fares for all three on the DL earnings guide.
This looks like a DL issue. Fare class shouldn't be listed under both. There's two tables one for before X date and one for after. All that matters is when ticket was issued.
AFAIK KL only use WSA for PE nowadays.