Bloomingdales Customer Service Phone Numbers Customer service:  1-800-777-0000 International Customers: 1.800.777.0000 OR 001.513.573.8170 Bloomingdale’s Credit Customer Service: 1.888.257.6762 Technical Assistance for Online Credit Services: 1.877.493.9207 option 1 TDD/TTY for the Hearing Impaired: 1.800.281.0820 Loyalist Customer Service: 1.800.600.5402 Wedding and Gift Registry: 1.800.888.2933 Furniture & Bedding: 1.800.323.7857   Bloomingdales Headquarters Info, Email, Phone number, Website and live