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If you have not received emails from us after placing an order or creating an account, please check the following:

1. The email was filtered into your Spam or Junk folder

Depending on your email provider, our messages may be automatically filtered into your spam or junk folder.
Please check these folders first.

2. The email is in your inbox but you didn't receive a notification

Your device or email application may not have notified you even though the email has already arrived.
Please check your inbox directly.

3. Network connection issues

A temporary internet connection problem may delay or prevent email delivery.
Please verify your network connection and refresh your mailbox.

4. Incorrect email address or domain settings

An incorrect email address or email server restrictions may prevent our emails from being delivered.
Please verify that your email address and domain (such as @example.com) are entered correctly.

5. Using a mobile carrier email address

If you use carrier email services such as "@docomo.ne.jp", "@ezweb.ne.jp", or "@softbank.ne.jp", emails from overseas domains or PC mail may be blocked.
Please add wiseelab.shop to your safe sender or allowed domain list.

6. Your mailbox is full

If your mailbox storage is full, new emails may not be received.
Please delete unnecessary emails to free up space.