My credit card, bank account or PayPal has a charge from Blizzard that I don't recognize.
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.
A temporary pre-authorization charge may be applied when making a digital purchase.
Information on the Blizzard Authenticator
Information about sales tax being applied to purchases made from Quebec.
Information about removing an authenticator you did not attach
What to do if you are unable to edit a billing profile.
Troubleshooting problems charging your Blizzard Balance
Troubleshooting steps for the error: "account_not_trusted_write_locked"
Information about authorization holds in your bank statement