If someone signs a bill in a hotel and doesn't pay the bill when eating, how should he settle the account?

Being able to sign a bill means that I (or unit) must have a current account in the hotel, and the hotel agrees to sign the bill and pay the bill regularly. In the absence of an invoice, the hotel can only temporarily record the receivables of a person (or a unit) and register them for future reference according to a valid signature. Invoices are issued at the time of collection and directly used as operating income.