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

How to resolve this error when buying something in the Battle.net Shop

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.

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

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

This error may be due to a server problem.

Information on submitting supporting documentation

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