If you have problems entering voucher codes, please do the following:
1. Click on your shopping cart. Then the shopping cart is shown on the right side (see picture).
2. Under the items "Checkout" and "Amazon Pay" is the field vouchers. Please enter your voucher code (marked in red on the picture):
PS: Vouchers can only be redeemed at the shopping cart. If you have already clicked "Checkout", please go back one step.