First of all, you don't need a password letter to activate a credit card. If you only spend by credit card, you can choose the signature consumption mode without password. If password consumption is set at the time of application, you can also call customer service at 8009888888 to change it.

If you plan to pay online (you need to open it at the bank counter) or withdraw cash at ATM, you must use a password. The password letter will be sent by ordinary mail within one or two days after you activate the card. If you don't receive it within 10 days, you can ask customer service to reissue it for you, and it will be sent by registered mail for the second time. In addition, you can also choose to send it by express delivery, and deduct 20 yuan from your card.