SPServices UpdateListItems not working

I created a list called testlist then I created a html within the same site with the following layout

<table> <tr> <td><strong>List Item to be added</strong></td> <td><input id="txtTitle" name="txtTitle" type="text" /></td> </tr><tr> <td><input name="ADD" id="btnADD" type="submit" value="Add Item to List" /></td></tr> </table> <script src="jquery 1.11.1 stored in my library"></script> <script src="SPServices SPServices 2014.01 stored in my library"></script> <script type="text/javascript">          $  (document).ready(function () {              $  ("#btnAdd").click(function () {                 var title = $  ("#txtTitle").val();                 AddListItem(title);             });          });          function AddListItem(TitleField) {             $  ().SPServices({                 operation: "UpdateListItems",                 async: false,                 batchCmd: "New",                 listName: "testlist",                 valuepairs: [["Title", TitleField]],                 completefunc: function (xData, Status) {                     alert("Data Saved! and Please check your List");                 }             });         }     </script> 

When I type TESTER in the box and push submit it does not enter in a new item into the list. Is there something I’m missing?

UpdateListItems Error: Data at the root level is invalid. Line 1, position 1

I´m trying the UpdateListItems web service but I always get following error in the response file: Data at the root level is invalid. Line 1, position 1. GetList, GetListItems and DeleteList works.

Here is the full Response:

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body><soap:Fault><faultcode>soap:Server</faultcode><faultstring>Exception of type 'Microsoft.SharePoint.SoapServer.SoapServerException' was thrown.</faultstring><detail><errorstring xmlns="http://schemas.microsoft.com/sharepoint/soap/">Data at the root level is invalid. Line 1, position 1.</errorstring></detail></soap:Fault></soap:Body></soap:Envelope>     

This is the VBA Code I wrote:

Sub AddItems() Dim sURL As String Dim sEnv As String Dim xmlhtp As New MSXML2.XMLHTTP Dim xmlDoc As New DOMDocument Dim BatchXml As String Dim Batch As String Dim FieldNameVar As String Dim ValueVar As String  strBatchXml = "<Batch OnError='Continue'><Method ID='1' Cmd='Delete'><Field Name='ID'>1</Field></Method></Batch>"  sURL = "https://sharepoint/adm/spiwi/ei/_vti_bin/lists.asmx" sEnv = "<?xml version=""1.0"" encoding=""UTF-8""?>" sEnv = sEnv & "<soap:Envelope xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance"" xmlns:xsd=""http://www.w3.org/2001/XMLSchema"" xmlns:soap=""http://schemas.xmlsoap.org/soap/envelope/"">" sEnv = sEnv & "  <soap:Body>" sEnv = sEnv & "    <UpdateListItems xmlns=""http://schemas.microsoft.com/sharepoint/soap/"">" sEnv = sEnv & "      <listName>TestListe</listName>" sEnv = sEnv & "      <updates>strBatchXml</updates>" sEnv = sEnv & "    </UpdateListItems>" sEnv = sEnv & "  </soap:Body>" sEnv = sEnv & "</soap:Envelope>"    With xmlhtp     .Open "POST", sURL, False     .setRequestHeader "Host", "occ.t-mobile.at"     .setRequestHeader "Content-Type", "text/xml; charset=UTF-8"     .setRequestHeader "Content-Length", "length"     .setRequestHeader "soapAction", "http://schemas.microsoft.com/sharepoint/soap/UpdateListItems"     .send sEnv     xmlDoc.LoadXML .responseText     xmlDoc.Save "D:\users\Tom\Downloads\UpdateItems.xml" End With End Sub 

I want to delete all list items but not the list. Can someone of you coding pros maybe tell me, what I’ve done wrong with this code?