FREE Standard Ground SHIPPING! on orders of $150 or more Free ground shipping on orders over $150 throughout the website. Free ground shipping does not apply in case the package returns to AT GSM Inc., including but not limited to shipping carrier returns the package because no one is available to sign for package or shipping address is invalid or undeliverable. Free ground shipping does not apply when customers cancel the order or return the item for refund. Customers are responsible to pay for ship to and return shipping fees.