Bank of China credit cards are mailed by postal registered mail.

Registered mail must be handed in at the post office business window. It must be inspected, packaged, written, and paid by post office staff. It meets the requirements for registered mail. The post office will handle the registration procedures and issue a domestic registered mail receipt; usually Mail does not give a receipt.

Registered mail must be registered piece by piece during internal processing and delivery within the post office; ordinary mail is not registered.

When registered mail is not received, you can take the receipt to the original post office to go through the inquiry procedures and make an inquiry; ordinary mail is not accepted for inquiry.

When registered mail is lost or damaged, it will be compensated according to regulations; ordinary mail is not responsible for compensation.