The previous property service contract was not signed by the owner.

Legal analysis: According to the relevant regulations, if the parties conclude a contract in the form of a contract, the contract is established when the parties sign, seal or press their fingerprints. Before signing, sealing or fingerprinting, one party has fulfilled its main obligations, and the contract is established when the other party accepts it. The property service is valid if the owner does not sign a property contract but actually accepts the property service. Moreover, the property service contract is a collective contract with a large number of owners. The main body of the realty service contract is the realty service provider, the construction unit or the owners' committee. Owners must decide to terminate the property service contract in accordance with legal procedures, and individual owners can use property rights to terminate the contract. If the property service provider has provided services in accordance with the agreement and relevant regulations, the owner shall not refuse to pay the property fee on the grounds that he has not accepted or does not need to accept the relevant property services.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 490 Where the parties conclude a contract in the form of a contract, the contract is formed when the parties sign, seal or fingerprint it. Before signing, sealing or fingerprinting, one party has fulfilled its main obligations, and the contract is established when the other party accepts it. A contract shall be concluded in written form as stipulated by laws, administrative regulations or agreed by the parties. If the parties do not do this in writing, but one party has fulfilled its main obligations and the other party accepts it, the contract is established.

Article 944 The owner shall pay the property fee to the property service provider as agreed. If the property service provider has provided services in accordance with the agreement and relevant regulations, the owner shall not refuse to pay the property fee on the grounds that he has not accepted or does not need to accept the relevant property services. If the owner fails to pay the property fee within the time limit in violation of the agreement, the property service provider may urge him to pay it within a reasonable period of time; If the payment is not made within a reasonable period, the property service provider may bring a lawsuit or apply for arbitration. The property service provider shall not stop power supply, water supply, heat supply and gas supply to demand payment of property fees.