It is normal to spend money to ask the store to issue an invoice. In fact, if the customer requests it, the merchant must provide the invoice. But now there seems to be a hidden rule in the wedding banquet hotel. If you enjoy their discount, the whole audience will not invoice. Many times, newlyweds will accept this statement, because there is no place to reimburse the money for the wedding banquet anyway, but customers ask them to issue invoices, which is well-founded by customers everywhere, because not issuing invoices directly involves tax evasion, but most people are unwilling to spend more experience on this matter, and the store says that they will not issue invoices without issuing invoices.