Send Post Request WebClient C# .Net 2.0

Question

I'm trying to send a POST request to a WebService, but I'm getting a (308 permanent redirect) error, I'm using System.Net.WebClient (All the program works in .Net 2.0 so I can't use System.Net.Http) Here is my code (makeRequets() method returns XML below this block)

                using (var client = new WebClient())
                {


                    client.Headers[HttpRequestHeader.ContentType] = "text/xml";

                    var data = Encoding.UTF8.GetBytes(makeRequest());


                    byte[] result = client.UploadData(connection, "POST", data);
                    string resultContent = Encoding.UTF8.GetString(result, 0, result.Length);
                }

This is the content I'm trying to send.(It works in postman)

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns="something.com/">
    <soapenv:Header/>
    <soapenv:Body>
        <procesarLotePorFacturaRequest xmlns="something.com/">
            <procesarDocumento>
                <rDE>
                    <DE>
                        <gOpeDE>
                            <iTipEmi>1</iTipEmi>
                        </gOpeDE>
                        <gTimb>
                            <iTiDE>1</iTiDE>
                            <dNumTim>14601619</dNumTim>
                            <dEst>9</dEst>
                            <dPunExp>9</dPunExp>
                            <dNumDoc>22712</dNumDoc>
                        </gTimb>
                        <gDatGralOpe>
                            <dFeEmiDE>2022-04-12T12:34:56-04:00</dFeEmiDE>
                            <gOpeCom>
                                <iTipTra>1</iTipTra>
                                <iTImp>1</iTImp>
                                <cMoneOpe>PYG</cMoneOpe>
                            </gOpeCom>
                            <gEmis>
                                <dRucEm>80005366</dRucEm>
                                <dDVEmi>4</dDVEmi>
                            </gEmis>
                            <gDatRec>
                                <iNatRec>1</iNatRec>
                                <iTiOpe>1</iTiOpe>
                                <dRucRec>5307630</dRucRec>
                                <dDVRec>3</dDVRec>
                                <iTiContRec>1</iTiContRec>
                                <dNomRec>BARRETO MENDEZ EDER MATIAS</dNomRec>
                                <dDirRec>A</dDirRec>
                                <dNumCasRec>0</dNumCasRec>
                                <cPaisRec>PRY</cPaisRec>
                                <dDesPaisRe>Paraguay</dDesPaisRe>
                            </gDatRec>
                        </gDatGralOpe>
                        <gDtipDE>
                            <gCamFE>
                                <iIndPres>1</iIndPres>
                            </gCamFE>
                            <gCamItem>
                                <dCodInt>614143297809</dCodInt>
                                <dDesProSer>R CAPELETIS - POLLO 500GR PAQ </dDesProSer>
                                <dCantProSer>3.00</dCantProSer>
                                <gValorItem>
                                    <dPUniProSer>12500</dPUniProSer>
                                    <dTotBruOpeItem>37500</dTotBruOpeItem>
                                    <gValorRestaItem>
                                        <dDescItem>0</dDescItem>
                                        <dTotOpeItem>37500</dTotOpeItem>
                                    </gValorRestaItem>
                                </gValorItem>
                                <gCamIVA>
                                    <iAfecIVA>1</iAfecIVA>
                                    <dTasaIVA>10</dTasaIVA>
                                </gCamIVA>
                            </gCamItem>
                            <gCamCond>
                                <iCondOpe>1</iCondOpe>
                            </gCamCond>
                        </gDtipDE>
                        <gTotSub>
                            <dSubExe>0</dSubExe>
                            <dSub5>0</dSub5>
                            <dSub10>37500</dSub10>
                            <dTotOpe>37500</dTotOpe>
                            <dRedon>0</dRedon>
                        </gTotSub>
                    </DE>
                </rDE>
                <parametrosProcesamiento>
                    <retornarKuDE>true</retornarKuDE>
                    <retornarXmlFirmado>true</retornarXmlFirmado>
                    <templateKuDE>1</templateKuDE>
                    <forzarReingreso>false</forzarReingreso>
                    <docAsociado>
                        <numero>1575</numero>
                        <tipo>4</tipo>
                    </docAsociado>
                </parametrosProcesamiento>
            </procesarDocumento>
        </procesarLotePorFacturaRequest>
    </soapenv:Body>
</soapenv:Envelope>

Thanks in advance