Synchrony bank Customer Service Phone Numbers Customer Service: 866-396-8254 or +1 866-419-4096 Credit Card: 877-295-2080 Synchrony Bank Deposit Accounts: 1-866-226-5638 Synchrony Bank Relay Services: 1-866-226-5638 Manage Your Account: 1-866-893-7864 Open an Account: 1-800-677-0718 Manage Your Account:
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