Negotiate a refund with merchants or ask for help from consumer associations and industrial and commercial bureaus.

According to Article 54 of the Law of People's Republic of China (PRC) on the Protection of Consumers' Rights and Interests, the business operator shall be responsible for the return of goods that consumers require to be returned as unqualified by the relevant administrative departments according to law. If you can't reach an agreement with the merchant, you can call 123 15 to make a complaint or report to the industrial and commercial bureau.