Facebook only allow you to change your Name after 60 days. You don’t be able to Change that.Now you can change your name But You Can Set Your Previous Names Only. Just follow steps below
Name Change before limit
1. First go to http://m.facebook.com/hacked
2. Now Click on “MY ACCOUNT IS COMPROMISED”
3. Now login with your account.
4. Facebook asks to change your password and some other security things.
5. In this procedure, it says “recently you changed your name if you didn’t do this?
change name now”
6. Now your previous names will be shown.
Choose your old name and click save.
That’s it you are done hopefully you enjoyed Follow my blog for more updates