1. delay: the reading of gas meter is calculated according to the actual gas consumption. Due to the time delay in data collection and transmission, the account balance is different from the balance in the table.

2. Delayed update of payment information: the payment operation was carried out recently, but the information was not updated to the system in time, which will lead to the inconsistency between the account balance and the actual balance in the table. Wait patiently for system update or contact Shenzhen Gas Company to verify payment.