This could be due to several reasons:

1. Your email settings may have filtered the email to "Spam" or "Promotions" folder.
If you don't receive the order confirmation email, it may have been sorted into your spam folder.
If you have email blocking or domain filtering enabled, please disable it to allow emails from our address (peachkissmikoto@gmail.com).
Especially if you use free email services (Yahoo Mail, Gmail, Hotmail, etc.), the email may be filtered to the spam folder due to that service's settings.

Please check your "Spam" or "Deleted" folder.

For information on how to disable spam filters, please refer to your email service provider's website.
If you use other email services, similar options are available. Please contact your service provider for assistance.

2. Your security software may be filtering the email as spam.
Please check the spam settings in your security software installed on your computer.

3. You may have spoofing email rejection enabled.
The "spoofing email rejection" feature blocks emails that appear to be from a forged sender address.

If this feature is preventing you from receiving emails, please try disabling it temporarily and then check for emails.

The settings vary depending on your email software (including free email services) and mobile carrier, so please contact your service provider for assistance.

4. Your registered email address may be incorrect.
The email address you entered during purchase may have been misspelled.

5. Your email server may be full and unable to receive messages.

Your email account may not have enough storage space to receive new messages. Please check your email account storage and delete unnecessary emails if needed.