1, the validity period of a credit card is generally reflected in the card, and it is generally not easy to find the validity period and card number of the card online. The easiest way is to look at your own cards.

2. If you can find the card of China Merchants Credit Card in your hand, just look at it and you will know the expiration date. For example, if my card shows 0 1/22, then the validity period of 2022 is 1 month.

3. Calculate the validity period by yourself.

4. Bring your ID card to the outlet of China Merchants Bank, call customer service at the outlet, and check the validity period or card number after verifying your identity.

5. WeChat customer service can't solve the problem. In order to ensure the security of customers' information, you can't just check the card number and expiration date.