The first thing you need to know is how to use your credit card.

After applying for a credit card, the user must remember to activate the credit card first, generally in accordance with the phone number provided above the credit card to call the activation of the setup transaction password can be, some banks may require the user to go to the counter to activate.

If you have a previous credit card, you can only choose to enter your credit card transaction code into the POS machine of the merchant that supports your credit card when you are shopping offline. If you have a credit card with no password, you don't need to enter your password when you swipe your credit card.

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Note:

Keep your credit card in sight when shopping in case the sales clerk drops your bag or swipes your credit card more than once. In the event of a lost credit card, it is important to lose the card in a timely manner to prevent it from being maliciously swiped by others.

Many people have the habit of keeping their credit cards in their wallets, and wallets are often placed with magnetic items such as cell phones and computers, which can easily lead to the magnetization of the credit card and prevent it from being used properly.

Credit cards can't be used without the internet, which can easily leak personal information, so when we use our credit cards to settle online, we must first make sure that the trading platform is secure and that the network used is safe (many WiFi connection apps have relevant detection functions).

Baidu Encyclopedia-Credit Cards