<form name="acceptedForm" id="acceptedForm" action="submitAgreement" method="post">
...
        <button id="agree_terms_use" name="agreementValue" type="submit" value="Agree">Agree</button>  &nbsp;
        <button id="disagree_terms_use" name="agreementValue" type="submit" value="Do Not Agree">Do Not Agree</button>

wget --post-data="agreementValue=Agree" https://frbservices.org/EPaymentsDirectory/submitAgreement --save-cookies cookie.txt --keep-session-cookies --delete-after

wget --load-cookies=cookie.txt 'https://frbservices.org/EPaymentsDirectory/FedACHdir.txt?AgreementSessionObject=Agree'