Air India — Not able to reschedule my flight

I have been trying to reschedule my flight to India by Air India schedule for departure from San Francisco on 21st Jan. My booking reference is J5RF1 and I have not been able to reschedule and I have spent over 16 hrs trying to reach the ticketing team and somehow I have not been able to get them. How do people manage? I am planning to file a lawsuit and not only get my money back but also get back the wages and time lost due to the 16 hrs of time spent and till now I have not been able to reschedule or talk to a ticketing agent