I can't open my facebook

Good Day!
If you can not access your Facebook account, go to
https://www.facebook.com/recover.php (click this link)
Provide your user id or email address. Then, follow the onscreen instruction and at the end it will reset your password.
To regain access to Facebook, try to look first at the inbox on your mail account, for the security code that Facebook sent to you. If security code is not in the inbox, search it at the spam folders.

And if your facebook account is blocked, please go to http://www.facebook.com/help/contact.php?show_form=disabled
(click this link)
fill up the form and click the Submit button.
or

You can write to [email protected], express your interest on recovering your account.
Explain why your account should not be disabled.

There are also helpful tips that you can find from this link:
http://facebookerrors.blogspot.com/2011/12/how-to-recover-facebook-account.html