What to do if you earned Twitch drops in the wrong Battle.net account

Blizzard Customer Support cannot lock your account on request

Steps to link a Battle.net account to a Humble Bundle account.

I have more than one Warcraft III: Reign of Chaos key claimed on the same Battle.net account.

A phone number can only be linked to one free game

It is not possible to move Battle.net Balance between accounts.

It is not possible to move a Call of Duty account to another Battle.net account

Information on where to update your Activsion Account Email

Information about consolidating Battle.net accounts, and how to play on multiple Battle.net accounts at the same time.

How to attach an Authenticator to your Battle.net account