Legal analysis: No, it is recommended to organize the materials, collect evidence and call the police

Legal basis: Article 3 of the "Consumer Rights and Interests Protection Law of the People's Republic of China" Operators who provide consumers with the goods they produce or sell or provide services must abide by this law; if this law does not provide for them, they must abide by other relevant laws and regulations.

Article 490 of the "People's Republic of China and Civil Code" Where the parties conclude a contract in the form of a contract, the contract shall be established when both parties sign, seal or fingerprint. Before signing, sealing or fingerprinting, one party has performed its main obligations and the contract is established when the other party accepts it. Laws and administrative regulations stipulate or the parties agree that a contract should be concluded in written form. If the parties do not use written form but one party has performed its main obligations and the other party accepts it, the contract is established.