Unlikely, considering that in almost all cases (award tickets excepted) the same routings can be purchased from 3rd party vendors such as Expedia or Travelocity. NW would much rather sell you the ticket than service Expedia's or Travelocity's customers.

I would use the "Talk to Us" link to complain about problems with nwa.com.

Mike in Mpls., vacationing Apologist at Large checking in from an internet cafe on Odos 28 Oktovriou in Athens