Ally Сustomer Service Financing & BankingAlly Phone Number: 1-877-247-ALLY (2559) (Bank customers) 1-888-925-ALLY (2559) (Auto customers) 1-877-320-2559 (TDD) 1-757-247-2559 (Outside the U.S.) Hours of operation: Bank customers: 24 hours, 7 days a week Auto customers: Monday-Friday 7:00 AM – 7:00 PM...