Transfer Server Owner permission to another identity

I joined with a wrong identity when I created the server and got stuck with it, how can I transfer it to my ‘Default’ profile, and is that possible?

NOTE: This is the Teamspeak 5 FREE Server

EDIT: I tried to create a privilege key but it’s not possible of course

There is no way of transferring user data from one identity to another without database access and a whole lot of unsupported fun.
This said: As you are talking about the free server provided by TeamSpeak: Contact the support.

I contacted them, I’ll wait for an answer thanks