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 about authorization holds in your bank statement
Information about sales tax being applied to purchases made from Quebec.
Instructions to check the status of an order placed on the Blizzard Shop
Payments in the Blizzard Shop cannot be split between two payment methods.
What to do if you are unable to edit a billing profile.
Troubleshooting problems charging your Blizzard Balance
Information about authorization holds on your bank statement