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.
Paying with PayPal in the Battle.net Shop requires the PayPal account to be verified
Payments in the Battle.net Shop cannot be split between two payment methods.
Troubleshooting issues with the security check to verify a payment in the Battle.net shop
Troubleshooting steps to resolve the error "Heads up! Something Went Wrong. Select another payment method or try again later."