Go to the Facebook Help Center: https://www.facebook.com/help/
Use the Help and Support menu in the Facebook app or website
Report a problem from the Help and Support menu
Visit the Meta Business Help Center if you use a business account: https://www.facebook.com/business/help
Use the support inbox in your Facebook account for official messages
Check the Help Center for account recovery and security options
Use the Facebook Community Help pages for common issues
Contact support through Meta Verified if you have that subscription
Use the Instagram Help Center for linked account issues if needed: https://help.instagram.com/