If a supplementary card is used, the name of the signatory of the supplementary card is the same as the name printed on the card, and UnionPay will verify the password. If you set the function of checking the password by swiping the card, just enter the password you set, and the international airline will not be verified. With a signature.

There are two basic lines of credit card, UnionPay line and international line (VISA, MASTERCARD, JCB or American Express, etc. ). swipe your card on UnionPay online and settle it directly in RMB, with no handling fee; If you swipe your card on an international line, it will be settled in US dollars. Since the credit card consumption abroad will be settled in US dollars, if the consumption amount is not US dollars, there will be an exchange fee between the two currencies, that is, 65438+ 0.5% of the transaction amount, and the exchange fee will be charged by the bank on behalf of international organizations. If the consumption amount is USD, no settlement fee will be charged. If you use a full-currency credit card, you can spend in any foreign currency in the world, and there is no currency exchange fee. The function of purchasing foreign exchange will be automatically activated, and foreign currency consumption will be repaid with RMB. )