The login servers received invalid information

Information about why you might get the message "An error has occurred." when you try to add a payment method

How to remove or change the phone number on your Battle.net account

You can transfer characters between Battle.net accounts as long as the registered name for both accounts match.

Information on error BLZBNTTAS00000005

Information on error BLZBNTBGS0000A413

How to move a Hearthstone account off a Battle.net account

How to move a Diablo IV account off a Battle.net account

How to move a Diablo III account off a Battle.net account

How to move a StarCraft II account off a Battle.net account