What does it mean for members to buy a pre-sale deposit?

The meaning is as follows:

Bi Li Bi Li deposit pre-sale is a sales model of shopping malls. The merchant pays a deposit to pre-sell the goods, and the buyer can book the goods in advance, and the transaction will be completed by then. Generally, pre-sold goods are mostly new products or in short supply. Booking in advance can ensure the success of the purchase and get a considerable discount.

Extended knowledge: the delivery time of pre-sale goods cannot be determined, and members have checked and agreed to the deposit payment agreement before placing an order. Non-refunding the deposit is the default rule, that is, if the goods arrive too slowly or are not needed, the deposit paid before cannot be refunded.