Air India Express - Full Refund Not Issued

I booked my (Delhi to Guwahati) flight ticket from www.ixigo.com on March *, **** at *:** p.m. I paid Rs. **** INR for the ticket, including the payment for seat.

Later, I realised that I have booked the flight for wrong date and cancelled it after approximately * hours.

I have received refund of only Rs. **** INR, even after cancelling the ticket within a period of ** hours. Moreover, the amount of paid seat has not been refunded back to me.

I’m in touch with ixigo staff and tried reaching the airline staff on March *, **** but could not reach you for first few days and could not find any resolution because the AI powered chatbot Tia was not able to understand my query and I was asked to ‘Start Over’ repetitively.

Please note that Air India Express has not shared any refund invoice with me.

I request the Airline to kindly consider refunding my full amount as a goodwill gesture as this was my first purchase with AirIndia Express and I cancelled the ticket within * hours period. Also, please refund the amount I paid to book the seat.

Also, I would like to know the legal complaint authority/court wherein such disputes are settled, along with the jurisdiction area.

And, kindly do share the refund invoice with me.