We are unable to resend the notification email as it was sent automatically while the order is placed.
You can find the "Sent notification emails" from your "My Account".
①Login to your “My Account”
②Click on the “order history”
③Click the "Details" to check your order details and payment method.
④Click the "Sent order notification emails" on the bottom of the page.
You can find all the emails sent regarding the same order.