Air India — refund not initiated

Hi team
I hd booked d flight from Delhi to srinagar which ws cancelled on 11 dec
Full return ws guaranteed with in three to 7 days... Its one nd half month nw bt still dre is no refund yet
Inspite of reapeted calling...first of Al no one picks up the phone nor it is attended... Its very uncomfortable for d customer... Nd dre iz no source of help...
Plz do something otherwise... I wud nt have any choice left other dn filing complaint in consumer court
Thankue