If you have already tried this, please check the following three points.
① Reconfirm the e-mail address you used for registration.
If you have already tried it, please check the email address you used for registration and try again.
② Check your filtering settings.
The authentication email will be sent to the domain "@info.stacommu.jp".
You may not be able to receive the authentication email if you have set your browser to reject PC email.
Please allow the "@info.stacommu.jp" domain to be received and try again.
※Please refer to your carrier's website or instructions for setting the domain name, as the method of operation differs depending on the mail application you are using.
③Please refer to your carrier's website or instructions.
Depending on your mobile carrier, you may not be able to receive authentication e-mails to your carrier's e-mail address.
Please try again using a non-carrier email address (Gmail is recommended).