1. Clarity: clearly list the charging items, standards, methods and other information to avoid misunderstanding or user dissatisfaction.

2. Highlight the key points: it is necessary to mark important charging information, such as whether it includes tax and service charge, so that users can see at a glance.

3. Detailed description: different charging standards and methods need to be explained in detail, such as how to charge, how to pay, and how to apply for a refund.