There may be a various reasons why Facebook may deactivate your account. If you are overlooking a policy or breaking a policy then Facebook may deactivate your account. Moreover, Facebook officials may not even have to look in to the matter as there are many bots which keep a close look on the activities over Facebook.
If your account has been suspended because of a suspicious activity you had not done, or a fake report, then we can help you in getting your account back. However, if you were breaking a Facebook policy or a law knowingly or unknowingly, then your account may not get recovered.
Here is a list of reason why an account may get suspended-