The credit card of Bank of Communications is usually sent by registered mail. Before sending, a short message will be sent to the applicant's short message, which contains the postal code of the registered letter. Registered mail inquiry can be directly searched by Baidu for China Post official website:

Enter China Post official website, click on the email query in the upper left corner;

2. Then enter the registered letter number in the bank notification SMS to check the mail delivery progress:

3. If you can't find the progress, it may be that the bank hasn't sent it yet, so you can wait 1-2 days to check again.