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Contact information

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Fiserv corporate headquarters

600 N. Vel R. Phillips Ave.
Milwaukee, WI 53203

  • If you are a supplier interested in doing business with Fiserv, please visit Supplier Information.

  • CheckFree Online Bill Pay:
    800-877-8021

     

    CheckFree Online Bill Pay Collections:
    800-848-1337

     

    Debit Card Services:
    800-554-8969

     

    BillMatrix:
    800-967-9649

     

    Walk-In Payments/CheckFreePay:
    800-676-6148

  • Complete the form on this page or contact us at 800-872-7882

  •  View contact list