i bought iris eyewear sunglass from bkc exhibition second day it got broken and then i gone for return the sales girl said mam yeh hum change nahi kar sakte kyuki yeh aapne offer me liya hai buy1 get 1 me in invoice its not mentioned if buy in offer then u cant get it exchange they are selling very chip products they have no customercare office or any proper office any saying it is a uk brand eve they dont have proper office in mumbai also..