You can use this service to reset your Battle.net password, which will remove most account locks.
Migrate your Destiny 2 content on Bungie's site, but make sure you've claimed any Battle.net keys first!
Use this page if you wish to change/modify your Contact & Shipping address for your Battle.net Account.
While Cross-Play is on, your Battle tag will be visible instead of your console handle
What to do if you cannot see your recent BattleTag name change in-game
Information on why your gamer tag is different than your BattleTag while in Call of Duty: Modern Warfare.
What to do if you earned a Prime Gaming reward in the wrong Battle.net account
Cannot quit a D3 clan or give the leadership to another person
How to report bad language, inappropriate clan names, and BattleTags in Warcraft III: Reforged
Troubleshooting steps to help you connect to the Battle.net desktop app.