hey aura, I got pretty much the same reply from tenso:
'<About your order from TA shop >
We are deeply sorry that you cannot get your product on the site.
This could be due to the fact that the shopping site experienced
trouble due to other members who are not resident in Japan and do
not respect the website policy .
From our side , we cannot find out so we recommend you to write
an email and ask the reason. If you cannot write a mail in Japanese
we can translate it for you , so just send us your email in English
and we will provide you with a translated version.
Also as other alternative, you can use professional shopping sites.
We introduced on our homepage a few professional shopping sites.
These sites can help customers who have trouble purchasing items .
and purchase the goods on their behalf.'