Thank you for contact us at Amazon. co. jp. Please give me a moment to check your account As you can see in the link below, there is no device which is registered on your JP account.So you need to register your device with Amazon Japan. Amazonサインイン
If you buy kindle books in amazon Japan, you can only download them after registering the device to the Japanese account, and cannot send them to other sites of amazon. If you don't want to register the device to a Japanese account, we can consider canceling the order and refunding it for you.
In general, if you have one more Amazon account and use same login (e-mail ID and password combination) on each Amazon global site, your device will be automatically registered to one of your accounts. ** Our system recognizes your account only by e-mail ID and password combination and there is no function to select Sign up country.
In that case, you 'll first need to change the password (or e-mail ID would be fine.) of your JP account, and then re-register. Just in case, I have sent an email to your JP account to change the password. You can change the password and log in again.
實體書賣光光買不到，總算開通日文阿嬤粽，可以支持盆之木至老師啦，好開心
Please give me a moment to check your account
As you can see in the link below, there is no device which is registered on your JP account.So you need to register your device with Amazon Japan.
Amazonサインイン
If you don't want to register the device to a Japanese account, we can consider canceling the order and refunding it for you.
** Our system recognizes your account only by e-mail ID and password combination and there is no function to select Sign up country.
Just in case, I have sent an email to your JP account to change the password. You can change the password and log in again.