Lost or Stolen ATM card, debit card, or checks
Report immediately to Cornerstone Bank at 701-364-9630 or 888-297-2100.
Lost or Stolen Debit Card after hours
Call MasterCard at 800-472-3272.
MasterCard questions while traveling
Please call 1-973-682-2652.
SecureCode: Enhanced protection for online shopping
To learn more about the MasterCard SecureCode or to enroll click here: