Generally, you can make inquiries after opening a credit card, and call the bank customer service. After being connected, just ask the customer service staff to help with inquiries. However, you should pay attention to the following points when making inquiries: 1. After canceling the credit card, you should first confirm whether there is any impact. If the credit card has no impact, continue to inquire; 2. After filling in the bank statement information, you can check it on the statement sent by the bank; 3. Credit card validity period and other information, if the card is not used within the validity period, it will be deemed invalid.