The Blizzard End User License Agreement explains what you may and may not do with a Blizzard account. This article highlights a few passages from the EULA that are most relevant to this policy.

Data on the installation disc could not be read.

Data on the installation disc could not be read.

Information on error BLZBNTAGT0000084B

Information about consolidating Battle.net accounts, and how to play on multiple Battle.net accounts at the same time.

Some overlay programs can cause Blizzard games to crash.

Troubleshooting steps to resolve this error

Troubleshooting steps for what to do if you get this error when trying to make a purchase.

Troubleshooting steps to save a credit card in your Payment Methods page

Battle.net or game account hacked or compromised