Is your payment declined at checkout or when paying the difference? Then that payment did not go through, nothing was charged and no gift card was ordered.
Try again, if needed with another card or another payment method such as iDEAL. Only your bank or credit card company can tell you why the payment was declined, for example because of a limit or a fraud check.
Do you still see a charge, or has your Giffy balance gone down without you receiving a gift card? Contact us through the chat or [email protected], with your Giffy code (if you have one) and the e-mail address of your order.