You can send them back as simple as placing your order, if that was necessary for whatever reason. You can submit a return request within 14 days of delivery, after which you will receive a link from which you can print the shipping label for your return.
You are not required to provide a reason for your return, but you can help us improve our services or products.
After receiving your request we will send you the details of the return procedure.
Article 7 in our terms and conditions tells you everything you need to know about the right of withdrawal.