1. To use WeChat: click "Me"-"Payment"-"Living Payment" and select "Gas Fee".
2. Use Alipay: Click "More"-"Living Payment" and select "Gas Fee".
3. Use Hua Qin Gas: Search for "Hua Qin Gas" on WeChat, and click "Gas Business" below.
4. Use Xi 'an Bank: download a mobile banking APP of Xi 'an Bank, click "Life"-"Gas Payment", and select Hua Qin Natural Gas Online Payment.
Please note that the specific operation may be different due to different regions and platforms. It is recommended to check the relevant platform instructions or contact customer service for consultation. In addition, when paying online, please ensure the security of your account and don't disclose your personal information and password.