After a successful bid, it cannot be cancelled or changed. Their bidding is deceptive. They give you 300 red envelopes every month, but you can only use it in that month. The bidding starts at 500 yuan, which means that the 300 yuan is a complete numbers game. If you want to sue them, you should be able to win. I was also fooled. Now the account balance is negative. I am very angry that Alibaba treats paying users like this. When they ask for money from me, I may argue with them. The successful bid will take effect immediately, but if you do not pay, your product name will not be ranked first. The result is that your account will be deducted and the product ranking will be invalid.