Complain about Tmall sellers. Is it useful to call 123 15?

123 15 complaints are useful, not only in March 15, but every day. "123 15" is an important task for the national industrial and commercial administrative authorities to accept consumer complaints and reports, mediate consumer rights disputes, investigate and deal with economic violations such as cases of infringing consumers' rights and interests and manufacturing and selling counterfeit and shoddy goods, and supervise and manage the market and administrative law enforcement.