If the user calls for an invoice, the drawer and the payee can print the format file by themselves if they need a paper invoice, and its legal effect, basic use and basic use provisions are the same as those of ordinary VAT invoices supervised by the tax authorities. Electronic invoices will be issued through WeChat and Alipay scan code. After the invoice is successfully issued, WeChat and Alipay will receive a system prompt and contact the gas station to confirm whether the gas station staff operates the invoice. Please confirm whether to inform the staff to fill in the mobile phone number or email address and confirm the input when notifying the staff to issue through communication.