TransUnion Customer Service Phone Numbers Customer Service: 800-916-8800 / 855-681-3196 Dispute Number: 800-916-8800 Credit Monitoring: 833-806-1626 Fraud alert: (800)-680-7289 Request your credit report by phone: 877-322-8228 TransUnion Client Support: (800) 813-5604 Client Technical Services Group: (800) 985-4208 TransUnion Headquarters Info,
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