1, online business hall: log in/,and click self-service > business inquiry > electronic bill inquiry > electronic invoice inquiry to enter electronic invoice inquiry, and the electronic invoice records will be displayed on the page. Select a downloadable invoice, and the details of the electronic invoice (including invoice code, invoice number and amount) will be displayed on the page. Click "Download Electronic Invoice" on this page to download the electronic invoice;

2. mobile phone business hall: log in to the mobile phone business hall, click Services > Inquiry > Basic Information Inquiry > Electronic Invoice Inquiry, and the mobile phone business hall page will display all your records of downloadable electronic invoices. Select a downloadable invoice, and the page will display the detailed information of electronic invoices (including invoice code, invoice number, amount, etc.). Click the "Download Electronic Invoice" button to link to the browser download page to download electronic invoices.