Sometimes the IP block you are on is not geolocated to the proper location as the GEOIP sites are slow to update the current location set .
This does not mean that your VPS is not in the proper location. This simply means that when a geolocation tool looks up the location of the IP address, it will list the location where the IP was originally registered.
There are numerous providers of "Geo IP" data. You first need to figure out which provider the service in question is using, and then file a report/correction with that provider.
I usually check my location against various providers using https://www.iplocation.net which usually flags up one service reporting the wrong location.
You can file corrections at the following pages :
https://support.maxmind.com/geoip-data-correction-request/
https://db-ip.com/report/
https://www.security.neustar/resources/tools/submit-to-global-ip-database
http://www.skyhookwireless.com/submit-access-point
http://ipinfodb.com/report.php
https://whatismyipaddress.com/location-feedback
And some other less friendly reporting methods:
https://www.ip2location.com/contact/
http://www.ipligence.com/contact/
https://support.google.com/websearch/contact/ip/
