You can use this service to reset your Battle.net password, which will remove most account locks.

What to do if you experience high latency or frequent disconnects.

What to do when the rewards for Nightfall Event are not granted

What to do if the Mail Return service fails

What to do if you used a Value Added Service Token on the wrong character by mistake

Steps to refresh your character list and locate missing characters

Troubleshooting for error 315000

Information about "pending service" errors when starting a character service

How to resolve this error in Call of Duty: Vanguard

Information on error code WOW51900101