REI Co-op Mastercard® Contact Info
Phone Cardmember Service
Our 24/7 U.S.-based Cardmember Service can help you with:
- Questions about your statement or payments
- Reporting a lost or stolen card
For detailed questions about your account, you’ll need to log into Online Banking so that we can authenticate that you are the card owner.
- Log into Online Banking.
- Under the “Customer Service” tab, select “Contact Us”.
- Email us your questions.
You can write us anytime at:
Cardmember Customer Service
P.O. Box 6351
Fargo, ND 58125-6351
If your card is lost or stolen
Always contact us by phone immediately at the Cardmember Service number on this page. We’re available 24/7.
Whenever you travel out of state or out of the country, call Cardmember Service before you depart. That way we’ll know to expect charges from new locations.