1. Impact of other preferential activities: There are often various promotional activities on the JD.COM platform, such as discounts, full discounts and coupons. After purchasing the annual card, participating in these activities will affect the purchase price and final settlement price.
2. Individual commodity price fluctuation: The commodity price on the JD.COM platform will fluctuate according to the market situation and the relationship between supply and demand, and sometimes the price of a commodity will fluctuate, resulting in the price at the time of purchase and the price after the annual card purchase is much more expensive.