Ecom Express — a jumpsuit

I order my dress approximately 3 week ago and order had to deliver on 2week but the didn't delivered it showing wrong address I called customer care then told me they will deliver my product within that day only but nothing happens again I complain I told them I myself receive my order please contact me with the delivery boy they give me no but he didn't pick up the call again I complain they assured me they will deliver but when my question is when I receive my order club factory didn't care about his customers I patiently waited but not now if you cannot deliver then I have to took strong step against you