易趣交易API AddFixedPriceItem返回'输入数据无效。 标记<Item.ShippingDetails>的输入数据无效'错误

How to list shipping details in UK or France using eBay AddFixedPriceItem API call? Here is my current code, that returns error:

<?xml version="1.0" encoding="utf-8"?>
<AddFixedPriceItemRequest xmlns="urn:ebay:apis:eBLBaseComponents">
  <RequesterCredentials>
    <eBayAuthToken>***</eBayAuthToken>
  </RequesterCredentials>
    <ErrorLanguage>en_US</ErrorLanguage>
    <WarningLevel>High</WarningLevel>
    <Item>
        <Country>UK</Country>
        <Currency>GBP</Currency>
        <ShippingDetails>
            <ShippingType>Flat</ShippingType>
            <ShippingServiceOptions>
                <ShippingServicePriority>1</ShippingServicePriority>
                <ShippingService>DHLExpressWorldwide</ShippingService>
                <FreeShipping>true</FreeShipping>
                <ShippingServiceAdditionalCost currencyID="EUR">0.00</ShippingServiceAdditionalCost>
            </ShippingServiceOptions>
        </ShippingDetails>
        <Site>UK</Site>
    </Item>
</AddFixedPriceItemRequest>

The correct value to use in the ShippingService field is UK_DHLExpressWorldwide