Why change username make security check

Every time i change facebook username or name
required security check
Then I can't login in ,all my account can't login in
Any way to fix it?

Don't change the username or make sure, that you can access the recovery options and/or can do the security check. If you're changing the username, because you buy the accounts and you don't like the names, find a provider, who offers accounts with custom username.

augustwu said:

Every time i change facebook username or name
required security check
Then I can't login in ,all my account can't login in
Any way to fix it?

Click to expand...

why you change the user name every time? It sounds not so good, right? you can change your password what amount you wish but you can change your user name only once/twice I'm not sure. When you provide an account, you will have the option to change the user name. otherwise, they provide a username for you until you change it. Change username again and again may force the facebook to think that you are fake or someone else who tries to log in into another account forcefully. Got it?!!

I want make it as my own brand name and page
Is there any way to fix?