Air India — Open Ticket ,unethical behaviour

I booked my tickets (2) for from and TO as well as To and FROM .
Due to personal reasons, I had to make my tickets as open and Air India helped me with that,
Air India is confirming this open ticket status only over call and not over email .
Now that I am trying to want to use the tickets, Air India says that it is Aliance Air that has to help .And Alliance air has no proper data on the open ticket information and they state it's Air India that has to help.I have spent 21, 320 INR in total. Please someone help me out here .