My credit card number changed. Is there anything else tha...

When you change your credit card number, you need to contact any companies (such as you... 詳細表示

I'd like to change my e-mail address. How can I change it?

You can change your e-mail address on "Change your e-mail address" out of "Change your ... 詳細表示

How can I check my Rakuten account information?

Click here to access your Rakuten account information and select English ! ... 詳細表示