simple bb code question

[Warlock 999]

Hello I'm working on a bans bb code. I want it to be like

Hello you appeal has been accepted. Thanks, Test

And the name be in the center of the bb code like
[appeal]Test[/appeal]

Thats the only part i can't figure out.

Thanks

[BlueNinjaGo]

What are you trying to get the BB code to do? Your post doesn't make much sense to me.