Air India Express — Delay in refund and poor customer care service

Address:

Thiruvananthapuram, Kerala

I booked ticket in AirIndia express on[protected] for Trivandrum to AbuDhabi flight( travel date[protected]. I received confirmed mail (PNR D58JWG), When we reach the airport, they told ticket denied and didn’t allowed to travel with that ticket.
When I check with my Bank, amount credited to AirIndia EXPRESS.
Multiple time contacted, no proper response from customer care. First complaint raised with case number: 04363785.
Kindly update the status.