To get in touch with Citizens Bank, customers are requested to adhere to given customer service phone number details. General Assistance - Citizens Bank PhoneBank: 1-800-922-9999 | 24 hours a day, 7 days a week Business Banking Assistance - Business PhoneBank: 1-800-862-6200 Mobile Banking Customer Service: 1-877-670-4100 Para Información en Español: 888-398-7900 About Citizens Bank Citizens Bank is a highly reputed financial institution, offering a broad range of retail and commercial banking products and services to individuals, small businesses, middle-market companies, large corporations and institutions. Citizens Banks aids in assisting its customers in reaching their potential by listening to them and by understanding their needs in order to offer tailored advice, ideas and solutions.