1. Contact ICBC customer service: call ICBC customer service to inquire about credit card mailing. Customer service staff can check the application status, confirm whether the credit card has been issued, and provide further solutions.

2. Confirm the mailing address: confirm whether the mailing address provided to the bank is accurate. If the address is wrong or incomplete, the bank may not be able to mail the credit card successfully.

3. Inquire about the mailing time: Find out how long it will take ICBC to mail the credit card to the customer. This helps to estimate the arrival time of the credit card and judge whether it is necessary to wait further.