If you want to use a Visa credit card, you can follow the following steps:

1. Make sure your Visa credit card is activated and a password is set. After receiving the card, you should activate the card immediately and set the password according to the instructions on the back of the card.

2. When using Visa credit card to pay for goods and services, you need to insert the card into the card reader of the credit card machine or mobile phone, and then enter the password or signature to confirm the transaction.

3. If you want to use Visa credit card for online payment, you need to choose Visa credit card for payment in online shopping malls or payment websites, and then enter the card information and password to confirm the transaction.

If you want to withdraw cash or transfer money by Visa credit card, you need to go to the bank counter or use the online banking function.

Note: When using Visa credit card, you should pay attention to the information such as credit card amount, interest rate, repayment date, etc., and abide by the relevant usage rules to avoid unnecessary losses.