1. Abnormal bank card status: If the bank card bound by WeChat is in abnormal status such as freezing or loss reporting, WeChat recharge will be rejected.

2. Bank card limit setting: If a daily or single transaction limit is set for the bank card bound by WeChat, the bank will refuse the transaction if it exceeds the limit.

3. WeChat payment restrictions: WeChat payment has transaction restrictions, such as the number of transactions per day and the amount of a single transaction. Exceeding the limit will cause the bank to refuse to trade.