Jet Airways — no refund is initiated

Address:

A/301 gokul divine near irla ville parle west mumbai :400067, Mumbai City, Maharashtra, 400067

I had my booking from goa to mumbai on 20th march and got the mail from jet that the flight is cancelled so we had word for refund and they told us within 24/48 hours refund mail will be initiated.. But nothing came up no refund nor mail so called again so same response
Now since 10days i am calling up for refund no response everyday they have reason will do it today in 2/3 hours is this the way to treat the customers... And cancellation of flights was from their side so refund should be done
Instead of calling so much its not done yet so please reply to this query asap
Thankyou
Heet makwana