C# WCF SOAP Service Development

I want to create a C# .NET Core 8 code for a WCF SOAP service.

I need it to match these outputs exactly.


<?xml version="1.0" encoding="utf-8"?>
<wsdl:definitions xmlns:intf="http://ws.billpayment.yemenpost.com" xmlns:apachesoap="http://xml.apache.org/xml-soap" xmlns:wsdlsoap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:impl="http://ws.billpayment.yemenpost.com" targetNamespace="http://ws.billpayment.yemenpost.com" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">
<wsdl:types>
<xsd:schema xmlns="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" targetNamespace="http://ws.billpayment.yemenpost.com">
<xsd:element name="ypPayment">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="str" type="xsd:string" />
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="ypPaymentResponse">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="ypPaymentReturn" type="xsd:string" />
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema>
</wsdl:types>
<wsdl:message name="ypPaymentRequest">
<wsdl:part name="parameters" element="impl:ypPayment" />
</wsdl:message>
<wsdl:message name="ypPaymentResponse">
<wsdl:part name="parameters" element="impl:ypPaymentResponse" />
</wsdl:message>
<wsdl:portType name="billpaymentws">
<wsdl:operation name="ypPayment">
<wsdl:input name="ypPaymentRequest" message="impl:ypPaymentRequest" />
<wsdl:output name="ypPaymentResponse" message="impl:ypPaymentResponse" />
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="billpaymentwsSoapBinding" type="impl:billpaymentws">
<wsdlsoap:binding transport="http://schemas.xmlsoap.org/soap/http" />
<wsdl:operation name="ypPayment">
<wsdlsoap:operation soapAction="" />
<wsdl:input name="ypPaymentRequest">
<wsdlsoap:body use="literal" />
</wsdl:input>
<wsdl:output name="ypPaymentResponse">
<wsdlsoap:body use="literal" />
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="billpaymentwsService">
<wsdl:port name="billpaymentws" binding="impl:billpaymentwsSoapBinding">
<wsdlsoap:address location="http://100.100.103.147:8148/YemenPostPayment/services/billpaymentws" />
</wsdl:port>
</wsdl:service>
</wsdl:definitions>



I want the XML output to be identical in every way:
Every letter.
Every sentence.
No changes or modifications at all.
I want the source code

I also need to create both the server and the client for testing purposes.

Please provide the source code for both the server and the client.