You can easily redeem your voucher code during the order process in the fourth step under "Check & Order"
There you will find the field "Do you have a voucher code?", in which you can insert it
Afterwards the discount will be deducted from the total price if the voucher conditions are fulfilled
For more info, visit https://www.c-and-a.com/eu/en/shop
Good to know
Works only in DE (EUR). The code is shown on your order page and emailed to you. Codes are final once delivered. C&A is a trademark of its owner; Gimme Cards is an independent reseller.