If you try to install a game that doesn't support your preferred language, the game will install the default language for your region.
How to report a bug in Diablo III
It is not possible to cancel a payment in progress
Information on why your purchase may not have been discounted.
Information on how to update your billing profiles.
Information on troubleshooting connection and installation issues using another network.
What to do if you want to report the infringement of Blizzard's copyright or you are looking to obtain a license to use Blizzard's intellectual property
If you do not have a decryption key, check the installation instructions for a point of contact.
A BattleTag™ is a player-chosen nickname that identifies your Battle.net account
What to do if you think another person or group of people has targeted a DDoS attack on you