Cardmember Service

Our 24/7 U.S. - based Cardmember Service can help you.

  • Call us

    Have questions about your statement or payments? Need to report a lost or stolen card?

    Call us toll-free:
    1-800-755-4122 (we accept relay calls)

    International collect:
    701-461-2542

  • Email us

    For detailed questions about your account, you’ll need to log into your account so that we can authenticate that you are the card owner.

    1. Log in to your account
    2. Click "Messages" in the header
    3. Click "Send A Secure Message"
    4. Provide subject and message
    5. Click "Send Message"
  • Mail us

    You can write us anytime at:
    Cardmember Customer Service
    P.O. Box 6352
    Fargo, North Dakota 58125-6352

    Mail Payments:
    Cardmember Service
    P.O. Box 790408
    St. Louis, MO 63179-0408

    Overnight Address:
    Cardmember Payments- 790408
    824 N 11th Street
    St. Louis, MO 63101-1016