Consumers can contact the OCC, file complaints about national banks, and get answers to frequently asked banking questions at the OCC's consumer site,

Comptroller of the Currency
Administrator of National Banks
Washington, DC 20219

Consumers may also contact the OCC Customer Assistance Group in English or Spanish, Monday through Friday from 7:00 a.m. to 7:00 p.m. CST. Call toll-free 1 (800) 613-6743 or TDD Number (713) 658-0340.