var zLKK_WS_PAYMENTS_DATA_GETClient = new ZLKK_WS_PAYMENTS_DATA_GETClient("ZLKK_WS_PAYMENTS_DATA_GET1");
            zLKK_WS_PAYMENTS_DATA_GETClient.ClientCredentials.UserName.UserName = "mylogin";
            zLKK_WS_PAYMENTS_DATA_GETClient.ClientCredentials.UserName.Password = "mypass";


            var zlkkWsPaymentsDataGet = new ZlkkWsPaymentsDataGet { Partner = "1999992999" };

            var zlkkWsPaymentsDataGetResponse = zLKK_WS_PAYMENTS_DATA_GETClient.ZlkkWsPaymentsDataGet(zlkkWsPaymentsDataGet);

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <system.serviceModel>
        <bindings>
            <customBinding>
                <binding name="ZLKK_WS_PAYMENTS_DATA_GET">
                    <mtomMessageEncoding messageVersion="Soap11WSAddressing10" />
                    <httpsTransport authenticationScheme="Basic" />
                </binding>
                <binding name="ZLKK_WS_PAYMENTS_DATA_GET_soap12">
                    <mtomMessageEncoding />
                    <httpsTransport authenticationScheme="Basic" />
                </binding>
            </customBinding>
        </bindings>
        <client>
            <endpoint address="http://cirtt.mrsk-1.ru:8075/sap/bc/srt/rfc/sap/zlkk_ws_payments_data_get/700/zlkk_ws_payments_data_get/zlkk_ws_payments_data_get"
                binding="customBinding" bindingConfiguration="ZLKK_WS_PAYMENTS_DATA_GET"
                contract="ServiceReference1.ZLKK_WS_PAYMENTS_DATA_GET" name="ZLKK_WS_PAYMENTS_DATA_GET" />
            <endpoint address="http://cirtt.mrsk-1.ru:8075/sap/bc/srt/rfc/sap/zlkk_ws_payments_data_get/700/zlkk_ws_payments_data_get/zlkk_ws_payments_data_get"
                binding="customBinding" bindingConfiguration="ZLKK_WS_PAYMENTS_DATA_GET_soap12"
                contract="ServiceReference1.ZLKK_WS_PAYMENTS_DATA_GET" name="ZLKK_WS_PAYMENTS_DATA_GET_soap12" />
        </client>
    </system.serviceModel>
</configuration>