No it doesn't work like this my friend... I played many sp servers and whenever I had this problem they either had a secondary IP or admin just unregistered the account for me.
Premium users have the right to enter big sp servers through a secondary IP address which are made specifically for them. It is not fair that someone else steals my user account and I cannot do anything about it.
This is the proof that I'm premium and someone is using my name already.
Can someone please remove that username so I can register my account?
Thanks..