Consumer Redressal

I purchase dress material from yebhi .com 0f 604 rs And paid them money ,then did not have that article and cancelled my Order No: YBH5733779 them self ,and transferred to coin section ,now when i asked them to refund they denied that they say purchase voucher from their site ,but all their voucher are coming soon for the last 2 months ,I want my money back as they cheated me now they don\'t respond ,plz help me in getting my money back.