How to File a Complaint against a National Bank regulated by: The Comptroller of
The Office of the Comptroller of the Currency’s Customer Assistance Group helps customers of national banks and their operating subsidiaries to resolve issues and complaints related to applicable banking laws and regulations. To talk with an information specialist, in English or Spanish, Monday through Friday 7:00 am to 7:00 pm CST. Toll free: 1-800-613-6743.