Before submitting your order please make sure your address is correct including adding Suite numbers. Failure to do so may result in extra shipping charges. Please note that Hayes Instrument is not responsible for lost or stolen packages once they have been scanned and delivered by the carrier. Shipping and taxes may vary from the original estimate. For credit card users, your card will not be charged at the time of placing this order. It will only be authorized. The shipping cost will be accurately determined when we package and weigh the items, and your credit card will be charged accordingly.