The discount code must be entered under the heading gift card or discount code. Only in this box the discount code works. In addition, pay close attention to the conditions that apply to the discount code. If it still does not work with adding the discount code, please contact our customer service. The code of the gift card must be entered under the heading gift card or discount code. It is important that you copy the code from the email, because a 'zero' can be seen as the letter o and the letter 'i' can be seen as an 'l'. Make sure that there is no space before or after the code. If it still does not work with adding the code, please contact our customer service or have a look at the giftcard page.