Banks typically print their customer service numbers on the backs of debit and credit cards. Customers can also find this number in the Contact Us section of the bank's website.
While a credit or debit card typically includes the bank's general 800 number, its website often lists the 800 number plus the phone numbers for nearby branches. Customer service numbers are typically included in the Contact Us section of a bank’s website or in another easily visible spot. Large nationwide banks usually have a local branch search tool on their websites that provides both the location and phone number of branches in a specific area.