Great Wall UnionPay Platinum Credit Card has been in business for a week, and banks have been making credit cards. According to relevant public information, the Great Wall UnionPay Platinum Credit Card has been in business for a week. Since the credit card has passed the examination, it has been in the process of making a card. The bank is making a credit card and will mail it after it is made. Credit card, also called debit card, is a credit certificate issued by a commercial bank or credit card company to eligible consumers. It is in the form of a card with the name of the issuer, expiration date, number and cardholder's name printed on the front, and a magnetic stripe and signature strip on the back.