Announcement reposted from Amazon Japan:
Buy Shipping (hereinafter referred to as “the service”) is a service that allows sellers to use shipping service to deliver ordered items to customers with Amazon negotiated fee.
Recently, fireworks were discovered among shipments. Usage of the service is subject to Terms and Conditions of Yamato Transport, hence it is advised that Amazon sellers check the said terms and conditions before shipping dangerous goods. Shipments in violation of carrier terms and conditions will result in significant shipment delays.