What to do if you found a charge on your credit card or bank account statement that don't recognize
Information about authorization holds in your bank statement
Information about authorization holds on your bank statement
A temporary pre-authorization charge may be applied when making a digital purchase.
Troubleshooting steps for payment error: Unexpected error code from complete:0.
What to do if you found a charge on your PayPal account that don't recognize
Friend or family member used payment information without permission and I would like a refund for the purchase(s) made
Information about using PayPal Balance to make purchases in the Battle.net Shop.
Information about using pre-paid credit cards for Blizzard purchases
Payment failed. Your financial institution may be denying the payment. Contact your bank or credit card issuer for help.