Please enter your payment email address instead of your registered email address. The order number is the number listed on the order details page when you place the order. You can chat online with the seller on the page you enter later, and the seller will tell you how and where to trade. If you do not remember the order number, or you try to contact the seller multiple times, but the seller did not reply to you, or the seller did not deliver in time, please contact our online customer service immediately.