How to check the letter of the cat's sky city

1. When registering a cat by air, ask the registration form of the post office and scan the code on the registration form to inquire about the logistics of postcards.

You can contact the sender of the registration form and ask him to provide the sender information of the postcard, or contact the post office to inquire about the sender information.

You can contact the sender of the registration form and ask him to provide the recipient information of the postcard.