Pepsiru..
Your 'domainname' TRG.servegame.com does not point to your server.
TRG.Servegame.com is NOT the url of your server and cannot be found on nameservers. What servegame.com (a no-ip service at 72.5.xx.yy) does, is redirect a request to TRG.servegame.com to your address 69.204.nn.mm:7000
As the request to YOUR server is then http:69.204.nn.mm:7000, te response from comes from YOUR server (with your IP-address), not from servegame.com !
To avoid this, you have to register a domain, not a redirection-service!