Citizens National Bank monitors for fraud 24/7. The fraud alert system will notify our debit card holders of potential fraud by email, text message or telephone call. You will be instructed to respond to the alert as applicable. Please do so as quickly as possible. If you suspect debit card fraud after bank hours or on the weekends, please call 866-546-8273. Remember that Citizens National Bank and our Fraud Protection Center will never ask for personal information such as bank account, debit card, credit card, or social security numbers over the phone.