USPS is used for shipping items. As shipping is a service you are purchasing from USPS, BlaqueX cannot be held responsible for lost or damaged packages or any other errors caused by USPS. We are also not responsible if incorrect shipping information is provided. If any issues should arise please email us at blaquexnailart@gmail.com and we will do our best to guide you to the best course of action (i.e. filing a claim with USPS).