A. First of all, kindly please check whether your registered email address is correct or not through My Page. For more details, please refer to here.
In case that you contact us through your cellphone carrier (docomo,au,Softbank) and no reply from us within 72 hours from the time you contacted us, the reply from us could be judged as a spam mail.
Please change your email setting before contacting us to be able to receive email from the domains below as well. Please make sure to go through this process, especially for the users using "-" and "." in their email addresses.
*As for the details on setting, please contact to your cellphone carrier.