Debit Cards

A debit card is linked to a cardholder's checking account. A merchant who accepts the debit card can deduct funds directly from the account.

China UnionPay

Process debit cards using the credit card services. See Standard Payment Processing.
Most domestic debit cards issued before 2016 do not have a card verification number (CVN) and expiration date. The
China UnionPay
processor does not support payment processing for cards that do not have a CVN and expiration date.