You can pay attention to whether the unit seals or the residential concierge signs.

If not, I suggest you call the customer service hotline of CCB and the customer service can arrange for you to mail the new card again.

After the card is issued, the bank will be notified by SMS. During the sending period, you can check the sending status through the registered letter code in the short message issued by CCB and the postal website (Baidu search "registered letter tracking inquiry system", which is specially used for postal inquiry of registered letters).