How to remove your payment methods from your account
Battle.net Balance cannot be used to pay for some Blizzard products
Troubleshooting PayPal payment issues
It is not possible to cancel a payment in progress
What to do if you are unable to use a payment method that you've used in the past.
There's an error with your payment authorization. Your financial institution may be denying the payment. Contact your bank or credit card issuer for help.
When a Boku payment does not go through after waiting 24 hours
Information on payment methods for our various shops.
How to save a method of payment in your Blizzard account