string loginName = "spread@reasonables.com";
                    
                        string loginPassword = "spread";
                    
                        string transferToEmail = "ToSpread@reasonables.com";
                    
                        int creditCount = 123456;
                    
                         
                    
                        SpreadWS.SpreadWebService mySpread =
                        new SpreadWS.SpreadWebService();
                    
                        bool result = mySpread.TransferCredit(loginName, loginPassword,
                    
                        transferToEmail, 
                        creditCount);
                     
 
                     
                    
                        
                        Dim loginName As String 
                        = "Spread@reasonables.com"
                    
                        Dim loginPassword As String 
                        = "Spread"
                    
                        Dim transferToEmail As 
                        String = "ToSpreader@reasonables.com"
                    
                        Dim creditCount As Integer 
                        = 123456
                    
                         
                    
                        Dim MySpread As New 
                        SpreadAPI.SpreadWebService()
                    
                        Dim result As Boolean 
                        = MySpread.TransferCredit(loginName, loginPassword, _
                    
                        transferToEmail, creditCount)
                     
                    
                        
  /**
    * @name     TransferCredit
    * @function Transfer credit to another account.(This method is only for reseller.)
    * @param
    *  loginEmail         The login email of your Spread account.
    *  loginPassword 	  The login password of your Spread account.
    *  transferToEmail    Email of transfer credit to user .
    *  creditCount        Total amount of transfer credit.
    *  @return
    *  		true if success.
    */
    public function TransferCredit($loginEmail,$loginPassword,$transferToEmail,$creditCount){
        $paraArray = array(
	            'loginEmail' 	 	=> $loginEmail,
	            'loginPassword'             => $loginPassword,
		    'transferToEmail'           => $transferToEmail,
		    'creditCount'     	        => $creditCount
        );
        $Client = new SoapClient("http://service.rspread.com/Service.asmx?WSDL");
        Return $Client -> TransferCredit( $paraArray );
    }
         
                     
                    No sample.