How to disband an arena team?

Hi everyone

I'm trying to disband my arena team, but I can't get the command to work.

According to http://www.wow-europe.com/en/info/basics/arena/tournament-faq.html

Q u o t e:
To disband your Arena Team, use the command /teamdisband # where # is the type of team (2v2, 3v3, or 5v5).

So far I have tried the following comands.

/teamdisband
/teamdisband2
/teamdisband2v2
/teamdisband[2v2]
/teamdisband(2v2)
/teamdisband#2
/teamdisband#2v2
/teamdisband#[2v2]
/teamdisband 2
/teamdisband 2v2
/teamdisband [2v2]

and maybe more...

But all the time it just taunts me with

Q u o t e:
Appropriate format is /teamdisband [2v2, 3v3, 5v5]

and it's kind of annoying...

I have opened a ticket, but I thought that if someone has a solution for me here sooner it will save me and blizz some time.

Thanks in advance :)