In Zhangjiakou fourth hospital with anti-control lenses cheap, how to do

In Zhangjiakou fourth hospital with anti-control lenses cheaper, complaints. Because in Zhangjiakou fourth hospital with anti-control lenses cheaper than before, the lenses have something wrong, is substandard, as long as they have the appropriate evidence, it is entirely possible to complain through the Consumer Council, of course, before the complaint can also be negotiated with the store, if the consultation is unsuccessful, then only to take up the legal weapon to defend their rights and interests.