You can pay the fee on the company website or online. If online payment is selected: 1. Enter WeChat, click any of the three icons on the left side of the menu bar at the bottom, click the search icon at the top right of the page, and then click the service on the page.
2. Click on the payment of living expenses under the popular search column to find the life service column of China Gas Exchange, and click on the payment of gas. Enter the payment number and pay according to the prompt.