Upon reception of the package always check its integrity. When it is visibly damaged, we suggest you have it opened in the presence of the courier, and make with him an official damage report. Contact us immediately, so that we can arrange for a replacement. Also, whenever we have sent you a wrong or defective product, write to us and we immediately replace it. Whenever in doubt, send us an e-mail with the details of your issue. We shall try to solve it to your satisfaction.