If you have already obtained a credit card, you can use it after opening the card.

To ensure the safety of your card use, the credit card must be opened before it can be used; to ensure the safety of the card, the cardholder needs to open the credit card when receiving a new card. Card operation (needs to be performed within the validity period of the card), the card can be used immediately after the card is successfully opened. 1. For new customers to open a card for the first time: Click here/CmbBank_CreditCardV2/UI/CreditCardPC/CreditCardV2/cs_ProOfActivate.aspx to open a card immediately 2. To open a card for customers who already hold or change cards: Please log in to online banking and click "Card Management-Credit Card Opening" card". ? After you open the card, please sign in the signature field on the back of the card, and keep it consistent with the signature on the application form. It is also recommended to log in to mobile banking immediately to set a transaction password.