How to register/verify my account?

Hello, new player here. I've noticed that many players have a name where your game ID number appears instead. I just want to know if there's anything a player has to do to have it appear like that because it is very confusing to be looking for people you know on a list full of IDs that look like a security clearance for a company's R&D.

On the Start Menu, there is an option called Support Menu, and there there is an option to Change Player ID Name. The first time is free, but any time you want to change it after that, it does cost money.

@AndrlCh late reply, but thanks it helped me.