The validity period of China Merchants Bank credit card is 5 years, which is displayed under the 16-digit credit card number. Some cards only display the expiration time, and some cards will display the issuance and expiration interval. If the number below the card number is a range, such as 02/10-02/15, it means the card was issued in February 2010 and expired at the end of February 2015; if the number below the card number only says 02/15, it means February 2015. Expires at the end of the month.