When viewing your shopping cart you will see a large field where you can enter your coupon code. Then click on the blue button "Apply discount". If the entry does not work there, please try variant 2.
If both variants do not work, we would like to ask you to enter the voucher code in the comment field. The voucher will be checked internally afterwards. In this case we would like to ask you to choose the payment method "prepayment". You will receive an order confirmation already adjusted by us, in which your voucher code has been taken into account.
Please note that there are certain minimum order values for most vouchers. The minimum order value does not include shipping costs. If the code does not work, please check if the net order value has reached the minimum order value.