At Additech, we believe our products are world-class and our service is best-in-class. And we guarantee it – 100%! If you are not completely satisfied with our product’s performance, we will refund your money. No questions asked. Simply send a scanned copy of your receipt along with your mailing address to firstname.lastname@example.org. Should you wish to mail a copy of your receipt for a refund, please send it to: Additech, Inc. 13000 Executive Drive Sugar Land, Texas 77478. A physical check will be mailed to you.