If, for any reason, you are not completely satisfied with your product, you may return it to us for a full refund within thirty (30) days of date of purchase. If you are such a purchaser and would like to return your product within 30 days of purchase, please contact us at support@ozrobotics.com. Please include your order number in the subject of the email. Upon verifying your proof of purchase, we will send you Return Merchandise Authorization (RMA) instructions on how to return your Arkipen. All returns must be in “as shipped” condition (meaning the same condition as when it shipped to you and returned to us in sufficient packing materials. Returns will not be accepted for any Arkipens 3D Pens that are damaged in any way, including, without limitation, damage caused by operating the product outside the permitted or intended uses described, damage caused by service performed by anyone who is not a representative of Cool Stuff or an authorized reseller. Accepted returns will be given back to you in the payment form of which you initially paid for your Arkipen 3D Pen no later than 30 days after receipt of the return. All shipping charges are not refundable. In addition, any returns will be subject to a ten percent (10%) restocking fee. If you purchased your Arkipen 3D Pen through an authorized dealer, please contact the establishment where you originally purchased it from and follow their return guidelines. Cool Stuff reserves the right to revise or eliminate this program at any time. Purchases will be governed under the terms and conditions in effect at the time of the sale. Unless covered under other contractual agreement, the following applies to all consumer customer returns: You must pay shipping costs for all shipments from you to Cool Stuff and a ten percent (10%) restocking fee. You credit card will be credited within 72 hours of receiving your return. Note: Some credit cards companies take 3 to 5, and even 7, business days to post the credit to your account.