Invoice can be issued ~ but it seems that no restaurant can use smart card, so I used it in KFC and asked for an invoice ~ because the invoice of the restaurant belongs to the catering invoice, the tax rate is different from the business invoice, and there is also an invoice for taking a taxi. How can restaurants not give invoices? For example, there are invoices for supermarket shopping. Invoices are not only reimbursement vouchers, but also after-sales vouchers. Merchants also have to give them, except for taking the bus without tickets.