Flash Sale is the product offered by the seller with special prices. This promotion has different rounds within a day and each round contains numbers of different items with limited stocks and limited time on flash sale.
Why I cannot buy from Flash Sale?
You cannot purchase the item before the opening time, if the item has been out of stock, it will be invalid to purchase. In order to get the item of it. Also, each User will only be able to buy 1 item per round
Why my Flash Sale order was canceled?
Items on flash sale requires that payment to be completed within 20 mins, otherwise the order will be cancelled.