Monday - Friday from 7am to 7pm CST and Saturday 8 am to 1 pm CST call us. Contact information

To report a lost or stolen -

1. ATM Card or PIN
2. CheckCard or PIN
3. VISA/MasterCard

Or report an unauthorized transaction

• Write to:
  Fort Sill National Bank
  Attn: Cards Department
  P.O. Box 33009 • Fort Sill, OK 73503
  
• Fax: (580) 354-3404 - Cards Department
  must be from a commercial fax line, not a DSN line.
• Phone: (580) 357-9880 • (800) 749-4583
  

Representatives are available Monday - Friday 7:00 a.m. to 7:00 p.m. and Saturday 8:00 a.m. to 1:00 p.m. (Central Time), excluding federal holidays.

To report a lost/stolen ATMcard and/or CheckCard after business hours, please call 800-355-2140. You must have your IVR Code. IVR Code not available, please call our phone service at 800-554-8969 .

To report lost or stolen FSNB Visa Classic Cards (Credit Cards) after hours 800-325-3678.