As professional florists, we guarantee your satisfaction with every order sent for delivery in the United States and Canada and on all FTD branded products. If you are not satisfied with the purchased product, we will send a replacement or refund the full purchase price, as long as the original flowers are returned to the flower shop that delivered them. All you need to do is notify us within 3 days of receipt of your order. You may call and inform our professional staff of any concerns. Please note that a refund can take 3-7 business days depending on your bank. *Do note that Latex helium balloons have a floating life of 5-8 hours and their lasting length depends on weather conditions. *Do note that Mylar helium balloons have a floating life of 15-24 hours and their lasting length depends on weather conditions.