TargetMol is committed to providing high quality products and services. If you are not satisfied with our product or the product does not perform as described on the datasheet, please contact our customer service department (email@example.com) for support. You could choose to return or exchange your purchased products under prior authorization from TargetMol. Any items returned to TargetMol should be placed in the original packaging and in the same condition as originally purchased. Please note that shipping, handling and packaging charges are not refundable.