If you are unable to purchase the product, it may be caused by the following reasons:First, confirm the product you are buying. Some products are only available in certain regions, like T10 used, T3,  and T40 are only available in US.Second, your order has high risk of fraud detected. Once this appears, the order will be marked then we will refund the customer. This situation is for all the potential fraudulent orders, not just yours.Third, your area is a remote area, and the logistics provider cannot deliver the goods.