According to the actual situation and the "Chinese people's *** and the protection of consumer rights and interests of the State", no return, no exchange is a violation of the law, belongs to the invalid agreement, so it is not legal. In the three packages validity period, consumers enjoy the right to repair, replacement, return, repair, replacement, return should be based on the invoice and three packages voucher. Merchants in the invoice, "no refund or exchange" is not allowed, especially to remind the public, should go to the regular merchants to buy goods, and check the shopping voucher on the terms. But to return the reason must be legal reasons, if just do not want, can not be returned. If you have not yet purchased, you can negotiate with the merchant first. If you have purchased, and the other party opened the consumer protection and 7 days no reason to return the service, you can complain, but the premise must be within 7 days.

"The Chinese people*** and the State Consumer Protection Law" Article 23 operators should ensure that in the normal use of goods or accept the service in the case of its provision of goods or services should have the quality, performance, use and validity of the period; but the consumer in the purchase of the goods or services before the acceptance of the consumer has been aware of the existence of defects and the existence of such defects does not violate the mandatory provisions of the law Exceptions. If the operator indicates the quality of the goods or services by advertisement, product description, physical samples or other means, the operator shall ensure that the actual quality of the goods or services provided by the operator is in line with the indicated quality. Operators to provide motor vehicles, computers, televisions, refrigerators, air conditioners, washing machines and other durable goods or services such as decoration, consumers from the date of acceptance of the goods or services within six months of the discovery of defects, disputes, the operator shall bear the burden of proof of the relevant defects.