Once the payment is completed and the fraud checks are passed, your CD key will be made available in your CDKeys account. If you made the purchase as a guest, you’ll receive the key through the confirmation email sent to the email address provided during the checkout.
If you used ApplePay or PayPal for your purchase, the key may have been sent to the email associated with your ApplePay or PayPal account, especially if you didn’t enter a delivery email during the checkout process.