I started purchasing in Japan in February 2025. Beside not being able to fix delivery time like most of Japanese online stores, I did not have problems. Then I decided to up-grade to PRIME: disaster! Products which I have ordered with precise address were shipped with incomplete address and never arrived. I immediately cancelled the orders by chat and received cancellation confirmation. Nevertheless, I kept receiving every day for 4 days, delivery notifications. In short, at Amazon Japan, THE RIGHT HAND DOES NOT KNOW WHAT THE LEFT HAND IS DOING. I had to cancel also directly online (where the order was still active 😱) I was really amazed about how terrible is the organization of a company that, to my eyes, organization was the most important selling point. I immediately cancelled PRIME and all my info at AMAZON JAPAN.