Error 400 when sending request to ESocial (C #)

I'm getting 400 error response to executing the SOAP request on eSocial servers. The error occurs in this command:

using (HttpWebResponse resposta = request.GetResponse() as HttpWebResponse)

• I installed the certificate chains.
• I installed the chains by putting all the certificates in the Local Machine Root repository
• I installed the chains by placing only the Brazilian Root Certification Authority v5 in the Root repository and the rest in the broker repository.
• I installed the certificate (valid, not expired and with correct password) from my client in the Personal repository (On the local Machine and the Current User).

It means that I can access the webservices addresses through the browser and the padlock turns green.

This is my code:

/// <summary>
/// Cria um webrequest SOAP para [Url]
/// </summary>
/// <returns></returns>
[HttpPost]
private static string enviarRequisicao()
{
    try
    {
        ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls;
        string web_service_teste =    "https://webservices.producaorestrita.esocial.gov.br/servicos/empregador/enviarloteeventos/WsEnviarLoteEventos.svc";                
        string xml_soap = @"C:\esocial\Templates\Esocial-S1000.xml";
        string url = web_service_teste;
        string response = "";
        Stream post = null;
        X509Certificate2 cert = new X509Certificate2(@"C:\esocial\certificado.pfx", "****");
        // build request objects to pass the data/xml to the server
        byte[] buffer = Encoding.ASCII.GetBytes(xml_soap);

        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

        request.Method = "POST";
        request.ContentType = "text/xml;charset=utf-8";                
        //request.Accept = "text/xml";
        request.ContentLength = buffer.Length;
        request.ClientCertificates.Add(cert);

        using (post = request.GetRequestStream())
        {
            // post data and close connection
            post.Write(buffer, 0, buffer.Length);
            post.Close();
        }

        using (HttpWebResponse resposta = request.GetResponse() as HttpWebResponse)
        {
            using (var stream = resposta.GetResponseStream())
            {
                using (var reader = new StreamReader(stream))
                {
                    var result = reader.ReadToEnd();
                    // Do something with result
                    return result;
                }
            }
        }
    }
    catch (WebException ex)
    {                
        throw ex;                
    }
}

This is XML:

<?xml version="1.0" encoding="UTF-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <soap:Body>
        <eSocial xmlns="http://www.esocial.gov.br/schema/lote/eventos/envio/v02_04_02">
            <envioLoteEventos grupo="1">
            <ideEmpregador>
                <tpInsc>1</tpInsc>
                <nrInsc>78294442</nrInsc>
            </ideEmpregador>
            <ideTransmissor>
                <tpInsc>1</tpInsc>
                <nrInsc>00254265000116</nrInsc>
            </ideTransmissor>
            <eventos>
                <evento Id="ID1333733250000002017122110411700002">
                    <eSocial xmlns="http://www.esocial.gov.br/schema/evt/evtTabRubrica/v02_04_02">
                        <evtInfoEmpregador Id="ID1027327500001832016021911320900001">
                        <ideEvento>
                            <tpAmb>2</tpAmb>
                            <procEmi>1</procEmi>
                            <verProc>1.0</verProc>
                        </ideEvento>
                        <ideEmpregador>
                            <tpInsc>1</tpInsc>
                            <nrInsc>78294442</nrInsc>
                        </ideEmpregador>
                        <infoEmpregador>
                            <inclusao>
                                <idePeriodo>
                                    <iniValid>2017-10</iniValid>
                                </idePeriodo>
                                <infoCadastro>
                                    <nmRazao>LIGA ARTE MOVEIS LTDA EPP</nmRazao>
                                    <classTrib>99</classTrib>
                                    <natJurid>399-</natJurid>
                                    <indCoop>0</indCoop>
                                    <indConstr>0</indConstr>
                                    <indDesFolha>0</indDesFolha>
                                    <indOptRegEletron>1</indOptRegEletron>
                                    <indEntEd>N</indEntEd>
                                    <indEtt>N</indEtt>
                                    <contato>
                                    <nmCtt>Cristiano dos Santos Lagame</nmCtt>
                                    <cpfCtt>08550234737</cpfCtt>
                                    <foneFixo>2122740494</foneFixo>
                                    </contato>
                                    <softwareHouse>
                                    <cnpjSoftHouse>00254265000116</cnpjSoftHouse>
                                    <nmRazao>LIGA ARTE MOVEIS LTDA EPP</nmRazao>
                                    <nmCont>Cristiano dos Santos Lagame</nmCont>
                                    <telefone>21993623199</telefone>
                                    <email>[email protected]</email>
                                    </softwareHouse>
                                    <infoComplementares>
                                    <situacaoPJ>
                                        <indSitPJ>0</indSitPJ>
                                    </situacaoPJ>
                                    <situacaoPF>
                                        <indSitPF>0</indSitPF>
                                    </situacaoPF>
                                    </infoComplementares>
                                </infoCadastro>
                            </inclusao>
                        </infoEmpregador>
                        </evtInfoEmpregador>
                        <Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
                        <SignedInfo>
                            <CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
                            <SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256" />
                            <Reference URI="">
                                <Transforms>
                                    <Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" />
                                    <Transform Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
                                </Transforms>
                                <DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" />
                                <DigestValue>...</DigestValue>
                            </Reference>
                        </SignedInfo>
                        <SignatureValue>...</SignatureValue>
                        <KeyInfo>
                            <X509Data>
                                <X509Certificate>TqIsONfPFt6L9tVM3CElBZeynQ1AlzzyZhpNX9YUTgiALPhv4eCxF/I0djghAj56FYBJMeWA4uwyGLA9L6VWMO1ksnuAsBHTWNd4/CI2IflwhlbCujgP91rBZOZJnr0YCQM9El92dUhVB0zBkFLvP14lDbyRIivF76ZlG3EeCCp8eCPi2QFoVY8N9tUpBNDSJPqkXSxgxvxPXQqfRsmwqoeVvd8sFKEmO4a5crmPbyExYOrrjoQoFhhgiagmS3O8rtjXBsWV9pKx435/mOMmU3/hGrWlIJfx4FQ7loqQZh/NVHRTXguMqua2m3QzSkVfw5oreZxbGUh9i0uZ0Dpocg==</X509Certificate>
                            </X509Data>
                        </KeyInfo>
                        </Signature>
                    </eSocial>
                </evento>
            </eventos>
            </envioLoteEventos>
        </eSocial>
    </soap:Body>
</soap:Envelope>

Detail, I got the error 403, but I resolved through of this post .

Update: The XML was incorrect, I discovered here which was the correct formatting. I found it important to mention here that I changed the code to this one below with the instructions of @Pedro Gaspar:

private static string enviarRequisicao()
{
    try
    {
        ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls;
        //string web_service_teste = "https://webservices.producaorestrita.esocial.gov.br/servicos/empregador/enviarloteeventos/WsEnviarLoteEventos.svc";
        //              string web_service_producao = "https://webservices.envio.esocial.gov.br/servicos/empregador/enviarloteeventos/WsEnviarLoteEventos.svc";

        string urlXML = @"C:\esocial\Templates\Esocial-S1000.xml";

        X509Certificate2 x509Cert = new X509Certificate2(@"C:\esocial\certificado.pfx", "12345678");

        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

        XDocument loteEventosXDoc = XDocument.Load(urlXML);

        var urlServicoEnvio = @"https://webservices.producaorestrita.esocial.gov.br/servicos/empregador/enviarloteeventos/WsEnviarLoteEventos.svc";
        var address = new EndpointAddress(urlServicoEnvio);
        var binding = new BasicHttpsBinding();  //Disponível desde .NET Framework 4.5
                                                // ou:
                                                //var binding = new BasicHttpBinding(BasicHttpsSecurityMode.Transport);
        binding.Security.Transport.ClientCredentialType = HttpClientCredentialType.Certificate;

        binding.MaxReceivedMessageSize = 768000;

        ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls |
                                SecurityProtocolType.Tls11 |
                                SecurityProtocolType.Tls12;

        var wsClient = new PortalMadeirol.Web.ServiceEsocial.ServicoEnviarLoteEventosClient(binding, address);

        // Variável 'x509Cert' é do tipo X509Certificate2.

        wsClient.ClientCredentials.ClientCertificate.Certificate = x509Cert;

        var retornoEnvioXElement = wsClient.EnviarLoteEventos(loteEventosXDoc.Root);
        wsClient.Close();
    }
    catch (WebException ex)
    {
        throw ex;
    }
}