The product must be unused and in the same condition that you received it! In order to complete the return we require a receipt of proof of purchase. Please do not send it to the manufacturer. You will have to send the product to the address that will be indicated to you. At the arrival of the product we reserve the right to certify the actual defect of the product and, if so, we will refund the amount paid by you with the addition of transport costs. No additional fees will be charged to the customer for the return of a product.