Nestaway Technologies — Nestaway- Security Deposit not Refunded still

It has been more than 45 days since I moved out of the rental house in Bangalore. I have not received the refund of my security deposit yet.
Last time, when I raised a complaint on 3rd July, I got the reply that amount will be refunded on 15th of July or earlier (attached the email that I got). Till now its not been refunded and no replies for follow-up as well. really pathetic customer service.