All units ordered are non-returnable unless special authorization is given by Gochnauer's. Items that are damaged or defective can be returned but must be handled through outlined procedures stated below. Any returns that are authorized are subject to a factory restocking fee and all situations will be evaluated on a case by case basis. Gochnauer's is not responsible for customer ordering errors. As soon as a credit card is given to us or payment of any kind is made, your request is now considered an order and is handled as such. Once orders are shipped, no changes can be made.