This article highlights a few passages from the EULA that are most relevant to this policy.
Friend or family member used payment information without permission and I would like a refund for the purchase(s) made
Information on the Blizzard Authenticator
Instructions to check the status of an order placed on the Blizzard Shop
Information about common payment issues and troubleshooting steps
Information on Blizzard Phone Notifications
Information about the app and troubleshooting gametime display
Unable to edit the billing profile
A temporary pre-authorization charge may be applied when making a digital purchase.
Payments in the Blizzard Shop cannot be split between two payment methods