Paypal pro UK direct payment

I am having issue with paypal pro direct UK payment method. I am sending below request but not getting any response from paypal server.

<?xml version="1.0" encoding="UTF-8"?> 
<XMLPayRequest Timeout="60" version = "2.0" xmlns="http://ift.tt/1gJEEEb" request_id="20150805021629930714">
    <RequestData> 
        <Vendor>Vendor</Vendor> 
        <Partner>PayPalUK</Partner>
        <Transactions> 
            <Transaction>
                <Sale> 
                    <PayData> 
                        <Invoice> 
                            <CustIP>127.0.0.1</CustIP> 
                            <MerchantDescription>TSTSTOR*FLOWERS4YOU</MerchantDescription> 
                            <BillTo> 
                                <Name>Mytest</Name> 
                                <Address> 
                                    <Street>1135 in</Street> 
                                    <City>Houston</City> 
                                    <State>TX</State> 
                                    <Zip>77037</Zip> 
                                    <Country>223</Country> 
                                </Address> 
                                <EMail>email@gmail.com</EMail> 
                                <Phone>911223121231</Phone> 
                            </BillTo> 
                            <ShipTo> 
                                <Name>mytest</Name> 
                                <Address> 
                                    <Street>1135 in</Street> 
                                    <City>Houston</City> 
                                    <State>TX</State> 
                                    <Zip>77037</Zip> 
                                    <Country>US</Country>
                                </Address> 
                                <EMail>email@gmail.com</EMail> 
                                <Phone>911223121231</Phone> 
                            </ShipTo> 
                            <Items>
                                <Item Number="1"> 
                                    <SKU>T-Shirt-1</SKU> 
                                    <Description>Custom T-Shirt (Upload your own design!)</Description>
                                    <Quantity>1</Quantity> 
                                    <UnitPrice>25.99</UnitPrice>
                                </Item> 
                            </Items> 
                            <TotalAmt Currency="USD">26.77</TotalAmt> 
                            <Comment></Comment>
                        </Invoice> 
                        <Tender>
                            <Card> 
                                <CardNum>XXXXXXXXXXXXXXXX</CardNum> 
                                <ExpDate>XXXXXX</ExpDate> 
                                <CVNum>XXX</CVNum>
                                <ExtData Name='CardIssue' Value=''/> 
                                <ExtData Name='CardStart' Value=''/> 
                            </Card> 
                        </Tender>
                    </PayData> 
                </Sale> 
            </Transaction> 
        </Transactions> 
    </RequestData> 
    <RequestAuth> 
        <UserPass> 
            <User>uername</User> 
            <Password>pswd</Password> 
        </UserPass> 
    </RequestAuth> 
</XMLPayRequest>

via Chebli Mohamed