Originally Posted by
cockpitvisit
I booked them as a VS codeshare, but Delta does not allow seat selection online (all free seats on the seatmap have a "x" on them; the flight is in the beginning of June), so I suppose it is being treated as an E fare.
VS has a separate booking class for Economy Light (T), which causes Delta to correctly treat it as Basic Economy. What I was talking about only applies to AF* or KL* flight numbers.