I was missing 2 NW International segments from March. I mailed in receipts and boarding passes (that had my OnePass # on them) and still no credit after 2 weeks When I asked OnePass what had happened they said they have no record of receiving the receipts and asked for them again!! Kinda difficult to resend originals but fortunately I had photocopied the boarding passes so I sent a copy of the copy! I just checked my account a few minutes ago and the credits have finally shown up!