Lost or Stolen ATM card, debit card, or checks

Report immediately to Cornerstone Bank at 701-364-9630 or 888-297-2100.

Fargo, Bismarck, Dickinson, and Sioux Falls Customers:

If your checks or debit card are lost or stolen, please report it immediately to Cornerstone Bank at 701-364-9630 or 888-297-2100. To report a lost or stolen debit card after hours, please call 800-472-3272. To activate or change your PIN, please call 800-992-3808. If you have MasterCard questions while traveling, please call 973-682-2652.

New Town, Parshall, Watford City, Plaza, and Makoti Customers:

If your checks or debit card are lost or stolen, please report it immediately to Cornerstone Bank at New Town 701-627-4717, Watford City 701-444-6411, or Parshall 701-862-3131. To report a lost or stolen debit card after hours, please call 800-535-8440 and then report it to your local Cornerstone Bank as well.