Akbar Travels — refund not processed and not responding to enquiries

We booked a flight ticket from spice jet through akbar travels to travel on 4th march, got a message from airlines on 18th march that there is a delay in flight schedule so we can either cancel it or travel so we chose to cancel it and asked akbar travels for the refund. Akbar travels sent a confirmation mail that our tickets are cancelled and will procee the refund in 15 days but it’s been more than one month they have not processed refund and not even responding to mails now.
At[protected].