Teacher, please tell me where the steps for WeChat authentication are: "③Invoice". I haven't seen any relevant demonstrations. If "②Fill in the information" is correct, will you jump directly to "④Pay"?

WeChat authentication issues-PHP Chinese Network Q&A

May I ask the teacher, where is the WeChat authentication step: "③Invoice", I haven't seen the relevant demonstration. If "②Fill in the information" is correct, will you jump directly to "④Pay"?