How can I vote more frequently than 12 hours for a WoW private server?

I saw many people being able to break the 12 hour voting restriction by using a proxy website and what not and i tried to do that but nothing worked.
Does anyone know how to do this successfully?

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia��).