All of our items that we list on have been tested and are guaranteed to work unless otherwise stated in listing. exchange it or refund your money if we don't have item in stock. normally will be replacement exchange . In the very rear and unlikely event that the item listed has already been sold, got damaged or is otherwise unavailable we reserve the right to substitute a like in kind item. All of our items have secret markings and sticker warranty label on them by our company . If any of the marks or label are missing / cut off from the item will be non returnable and warranty will be void. Many countries impose their own customs, duties, tariffs, taxes, brokerage fees, etc. on items being shipped from a foreign country. We do not cover this cost for any of our International customers.