Article 24 of the Law on the Protection of Consumers' Rights and Interests stipulates that if the goods or services provided by operators do not meet the quality requirements, consumers may return them according to the provisions of the state and the agreement of the parties, or require the operators to perform the obligations of replacement and repair. If there is no state regulation and agreement between the parties, consumers can return the goods within seven days from the date of receipt; After seven days, consumers who meet the statutory conditions for terminating the contract can return the goods in time. If it does not meet the statutory conditions for terminating the contract, it may require the operator to fulfill the obligations of replacement and repair. Where goods are returned, replaced or repaired in accordance with the provisions of the preceding paragraph, the business operator shall bear the necessary expenses such as transportation. Twenty-fifth operators sell goods through the Internet, television, telephone and mail order. Consumers have the right to return the goods within seven days from the date of receipt without giving reasons. According to the above regulations, there is no reason to return the goods within seven days if they are sold by internet, television, telephone or mail order. Otherwise, both parties must have a contract or agreement.