There is no invoice and receipt to sue the beauty salon, because the beauty salon has violated the law in the normal sales and service process. According to the relevant tax regulations, units must issue invoices to consumers when conducting business activities, so even if consumers do not have invoices or receipts provided by beauty salons, they can defend their rights by providing relevant consumption evidence, such as screenshots of chats, recordings of children's paintings or transfer records.
Beauty shops generally provide prepaid services, such as recharging beauty cards. For such products, consumers can apply for a refund at any time. The legal basis is Article 53 of the Consumer Protection Law. If consumers have service disputes or refund obstacles when consuming beauty or enjoying services, they can take formal and effective measures to protect their rights, such as calling 123 15.