Online payment, merchants take Alipay channel. If he doesn't open a large credit card for payment, the limit of online payment in 300 yuan for one day, one week and one month is generally 5,000 yuan per Alipay account.
Alipay buys things with a credit card, usually looking for his friend, and then he takes out the money for you. In fact, you didn't buy anything from him, just pretended to confirm it. Credit card limit can be withdrawn, which is not affected by the withdrawal ratio. One is empty buying, the other is empty selling, and there is no actual delivery.