Air India — refund for cancelled flight

Ticket number: 098­[protected]
Pnr : z7ryy

I have booked an air india flight for my journey from mumbai to vijayawada using "goibibo.com", for the date 03/08/2018, but when i had reached the air india counter (At around 12:15 am after checking out from an international flight), i was informed that the flight was not operational on that date and told me that they could help me only in exiting the airport.

When i called the customer service of the airlines, i was told that on their system it was showing that i had taken the flight on 1st of august, 2018, which would be impossible as i was in milan on 1st of august, 2018. When i explained this to them, they changed my status to "no show", even though i was at the airport.

Later, i had made another booking on another airline and went to the other terminal to wait for 10 more hours for my flight. And when asked for refund no one responds properly.
When i had asked goibibo for the refund, they told me that my case was unusual and had forwarded my complaint to the airlines. They haven't gotten any reply from the airlines yet and it's been almost a month.

I would like the airlines to solve my issue and help me in getting the refund as soon as possible.