Some games require that you add a phone number to your Battle.net account

Information on error BLZBNTTAS00000005

Information on error BLZBNTBGS0000A413

Information about retrieving a locked account

Information on error BLZHSBGS00000056

Customer Support can assist in recovering Battle.net Accounts if provided with necessary information.

What to do if you have lost access to your Blizzard Data File.

Information about this error when submitting a data protection request

Information on error BLZBNTBGS00000056

How to report someone for suspicious Auction House posting or buying.