Create a quote with a location extension. After hitting save you will see the SOAP request to the AdWords Geolocation service in the Tomcat log. Verify that the request is sent to https://adwords.google.com/api/adwords/cm/v201409 and not v201406.
Also check if clientCustomerId header is present and is reading from sapi override property


Example:
SOAP Request: geolocation service:
<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <soapenv:Header>
        <ns1:RequestHeader xmlns:ns1="https://adwords.google.com/api/adwords/cm/v201409" soapenv:mustUnderstand="0">
            <ns1:clientCustomerId>7278507336</ns1:clientCustomerId>
            <ns1:developerToken>ojCnjZaM6RD1h0yt_DOJZg</ns1:developerToken>
            <ns1:userAgent>AdMaxLocal AdWords Software TSA DEV (AwApi-Java, AdWords-Axis/1.36.0, Common-Java/1.36.0, Axis/1.4, Java/1.6.0_31, maven)</ns1:userAgent>
            <ns1:validateOnly>false</ns1:validateOnly>
            <ns1:partialFailure>false</ns1:partialFailure>
        </ns1:RequestHeader>
    </soapenv:Header>
    <soapenv:Body>
        <get xmlns="https://adwords.google.com/api/adwords/cm/v201409">
            <selector>
                <addresses>
                    <streetAddress>42 Ladd Street Building 3</streetAddress>
                    <streetAddress2>Unit 321</streetAddress2>
                    <cityName>East Greenwich</cityName>
                    <provinceName>RI</provinceName>
                    <postalCode>02818</postalCode>
                    <countryCode>US</countryCode>
                </addresses>
            </selector>
        </get>
    </soapenv:Body>
</soapenv:Envelope>

SOAP Response:
<?xml version="1.0" encoding="UTF-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
    <soap:Header>
        <ResponseHeader xmlns="https://adwords.google.com/api/adwords/cm/v201409">
            <requestId>00050c83c671d0310ab6e342bb004311</requestId>
            <serviceName>GeoLocationService</serviceName>
            <methodName>get</methodName>
            <operations>0</operations>
            <responseTime>315</responseTime>
        </ResponseHeader>
    </soap:Header>
    <soap:Body>
        <getResponse xmlns="https://adwords.google.com/api/adwords/cm/v201409">
            <rval>
                <geoPoint>
                    <latitudeInMicroDegrees>41664675</latitudeInMicroDegrees>
                    <longitudeInMicroDegrees>-71447004</longitudeInMicroDegrees>
                </geoPoint>
                <address>
                    <streetAddress>42 Ladd Street Building 3</streetAddress>
                    <streetAddress2>Unit 321</streetAddress2>
                    <cityName>East Greenwich</cityName>
                    <provinceName>RI</provinceName>
                    <postalCode>02818</postalCode>
                    <countryCode>US</countryCode>
                </address>
                <encodedLocation>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</encodedLocation>
                <GeoLocation.Type>GeoLocation</GeoLocation.Type>
            </rval>
        </getResponse>
    </soap:Body>
</soapenv:Envelope>