Former Bank of the Cascades Clients:
If you haven’t already, be sure to update the phone number for First Interstate Bank’s Client Contact Center (1-855-342-3400). The phone numbers previously used to access Bank of the Cascades’ Customer Support Center will not work as of March 6, 2018.
At First Interstate Bank, protecting your financial information is our top priority. To this end, we have a firewall between the Internet and our client information preventing unauthorized access as well as only communicating through web browsers that support Secure Socket Layer (SSL) 3.0 or higher. As a final security measure, we encrypt all data communication using state of the art encryption technology and Message Authentication Code (MAC). At First Interstate Bank, we guarantee you will be covered 100% for all funds improperly removed from your accounts while we are handling your transactions. We will reimburse you for any unauthorized online removal of funds from your accounts provided it is not the result of client irresponsibility.
Use this online form to submit an ATM, or a Debit Card dispute. For wire disputes use the Wire Transfer Dispute Form. A First Interstate Bank dispute consultant will be in contact with you within 5 to 10 business days. If you already have an existing ATM or Debit Card dispute open, simply contact your local First Interstate Bank branch for information.
If you have questions or prefer not to complete this form online, please contact your local First Interstate Bank branch.
If you have more than one disputed transaction, please use a new form for additional transactions.