Air India — Refund not received

Address:

Quarter No.- 554D, Railway colony, Kallukuzhi, Near Mannarpuram sub post office

I had booked a ticket Number[protected]/1/1 and PNR number Z00BH from ( TRZ-DEL ) for date of journey 15/04/2020 in lockdown period. Due to covid-19 situation all flight were cancelled. And air india has been announced for refund of ticket money. My Ticket money not refunded till now because my ticket status is showing FLOWN. When all flight were cancelled in lockdown period during of 25th March 2020 to 3rd May 2020 how can posible for FLOWN without check-in.