InMovidu Technologies Business Development Associate (BDA) interview questions

such a worst company I completed my interview process(gd,extempore and pi) and got a call that I was selected and offer letter will be issued within 2 days .I called hr again after 10 days she changed his words saying you are not selected and I mailed hr (other)they called me and said letter will be issued but still now nothing offered.Only they react after my msg.