What to do if you found a charge on your credit card or bank account statement that don't recognize
Information about authorization holds on your bank statement
Information about authorization holds in your bank statement
Troubleshooting steps for payment error: Unexpected error code from complete:0.
A temporary pre-authorization charge may be applied when making a digital purchase.
What to do if you found a charge on your PayPal account that don't recognize
Information about using pre-paid credit cards for Blizzard purchases
What to do if your payments with these virtual cards are not completing successfully.
How to pay with debit card, national card or local card
Unable to place an order with error "Your credit card information is not valid"