PLEASE HELP! Facebook won't let me change my band page username?

[miket]

I've tried countless times and it just keep saying an unexpected error has occurred. We go to change username then type in the username and click check availability, it says its available, then when we click confirm (every single time) it says an unexpected error has occurred. Please someone help us with this. We need an efficient way to direct people to our page.

 

[lilyn1]

try checking your source of Internet if that doesn't work then completely shut off your phone or if that doesn't work either log out of Facebook log back in a few times and if that doesn't work I'm sorry man its f***** up