Why does Didi only print electronic invoices?

1. Open Didi Chuxing and click the Personal Center in the upper right corner.

2. In the pop-up interface, click the wallet option.

3. in the my wallet interface, click the invoice option.

4. Then select the type to be invoiced.

5. Select the itinerary to be invoiced.

6. in the pop-up interface, select the electronic invoice and fill in the relevant information.

7. After that, confirm the relevant information, and then click "Confirm" below to submit it.