Why did I get API error code 10756?
Issue
PayPal returned API error code 10756 - The country and billing address associated with this card don’t match. Re-enter the correct information.
Cause
The transaction was declined because the country and billing address associated with this credit card doesn't match.
Solution
For more information, see the PayPal NVP and SOAP API Reference Guides.
See the Developer Portal for a complete list of NVP/SOAP API error codes.