Jet Airways — refund flight ticket

I recieved a mail from jet airways that my flight has been cancelled but its been 3 week now and i did not get my money back. I booked via paytm. Paytm is also following up on the request with jet airways as they said still no response. I have paid 17877 inr. Please help. It is frustrating and a poor service that was not expected.

Name of traveller: prasad naik
Confirmation number:slxpxk