>>>>>>I went online and had some trouble finding my reservation. When I did, noticed that the seatmap showed all of row 1 open, but would not allow me to select the Premium seat.
On a side note, I had 5F reserved on the DTW-MSN portion of my HAM-MSN return next month, but after an apparent schedule change for that flight, the seat was now listed as unassigned. When I tried to reassign 5F for that flight, "My NWA Info" showed only the seat map for the AMS-DTW flight and the DTW-MSN flight was not reflected at all in the seat map options. Pulling up a seat map using a reservations search showed 5F empty. A call to Chisholm, MN let an agent re-enter my FF number into what must have been a KL-referenced record. I then got 5F, and minutes later was able to pull up the seat map for the DTW-MSN flight again in "My NWA Info." It's always worth checking the status of seats (and potential schedule changes) on upcoming flights (my flight time had changed, but I still haven't gotten a schedule change e-mail from NWA).