To ask for a refund you must attain an RMA (Return Authorization). Requests need to be made on the web and submitted along with your purchase information. If you come back your product and not using a RMA range you won't be refunded. Transport and dealing with charges are non-refundable. https://sleepapnea22860.blogolenta.com/30225022/helping-the-others-realize-the-advantages-of-nose-clip