Dear Ms. Nguyen,
Thank you for your reply.
We sent you the invitation by EMS today.
And we herewith send to you address label as attached file.
The EMS tracking number for the invitation is EF 742 823 568 JP.
The invitation can probably be tracked through EMS’s official site.
http://www.post.japanpost.jp/int/ems/delivery/index_en.html
Please confirm.
Thank you and best regard,