2. The latest activation date is marked in the registered letter sent by the bank to users. It can be activated at any time as long as it has not expired. Expired invalid, can only re-apply.

Supplement: Credit card activation method

(1) The activation process of credit card customer service phone is as follows.

(1) Call the 24-hour customer service hotline displayed on the back of the credit card. After selecting the corresponding language, please enter the cardholder's card number and inquiry password.

(2) According to the voice prompt, select the card activation option under the menu of "Credit Card Activation and Password Management".

(3) Enter the last 3 digits printed after the signature column on the back of the cardholder's credit card, and press # to confirm.

(4) Enter the cardholder's home phone number and press # to confirm.

(5) Enter 6 digits as the cardholder's transaction password and press # to confirm.

(6) Enter the 6-digit transaction password again and press # to confirm.

(7) The transaction password is set successfully.

I hope my answer can help you.