Hitachi — complaint against your worker

your air conditioner installer named kashif from sector 14 gurgoan office came to install my ac. 1.5 week back he didnt install my ac properly and took 1700 rs for which didnt get any bill he gave me his number and called him many time from which he use to lie to me he is thug and lier and because of your employee i have to suffer i hae to sleep in hot weather in this summers being your loyal custome.. i m hoping a strict action against him or else i have to take a strict legal action against your comapny yours sincerly mahendri