There's a problem with the connection to the Blizzard servers.

This is about the refund of the classic game (Diablo II, Diablo II: Lord of Destruction) that Blizzard released in the past.

This is a way to check Overwatch products and receive refunds.

You can check the refund policy for Battlecoin through this page.

Information on the BLZBNTBTS00000011 error

Information on the BLZBNTBNA0000000C error

The Battle.net Deskop App can't be launched due to an operating system error.

Information on how to change the registered Battle.net account holder name

Information on submitting supporting documentation

What to do if you can't send or accept invite for Recruit A Friend in World of Warcraft